Triumph Tiger 800 Forum

Tiger 800 / 900 - Main Discussion Section => Suspension and Chassis Set-up and Mods => Topic started by: markymark11 on August 06, 2019, 07:32:41 PM

Title: Handlebar shake at 50mph
Post by: markymark11 on August 06, 2019, 07:32:41 PM
My 2019 shakes the bars at between 45 & 55 mph - I have just had it's first service and they re-balanced the front wheel and as far as Triumph were concerned everything else was fine...but it still does it. It does not get into a tank slapper but is really annoying. Best way to induce it is to do 60mph then let go of the bars and as it slows to 50 they start to shake and then stop shaking around 40- 45 (they still do a tiny bit but nothing like as bad) If you hit cruise control / hold at 50 then they just shake all the time.

I have checked tyre pressures 36psi front 42psi rear - (If anyone is running different pressures I would like to know)
Over the 500 mile running in period I have increased and then decreased damping and compression settings at both ends in incremental steps which didn't make a difference. My 2018 had standard factory suspension settings and no shake so that is where I have it at the moment, It has the stock screen and no luggage.

Anyone any ideas or similar issue in the past ? I am hoping it is a duff tyre maybe ? ...My local Triumph dealer are really good and will take it back and look at it again I am sure , but is there anything obvious that springs to mind before I go that route - I always like to try and fix simple issues myself if poss for the knowledge and peace of mind ?
Title: Re: Handlebar shake at 50mph
Post by: Fazer on August 06, 2019, 09:04:57 PM
Iíve just taken delivery of a 2019 XRT in the same colour but only put 350 miles on it since collection last week. By comparison, mine is super smooth with no shaking of the bars. I was wondering if yours has done this since you first took delivery or if it has developed as you increased the miles. I would expect that your dealer and Triumph should be able to resolve this issue for you even if it means replacing the wheel and tyre. Please let us know the outcome and good luck with getting it sorted.
Title: Re: Handlebar shake at 50mph
Post by: chuckxc on August 06, 2019, 11:51:40 PM
First up, eliminate any aerodynamic cause, particularly a big top box or asymmetrical pannier setup.

The most common cause of front end shake is either too loose or too tight headstem bearings. Ask the mechanic to test that.
Title: Re: Handlebar shake at 50mph
Post by: K1W1 on August 07, 2019, 12:12:02 AM
ADV tyres are also renowned for causing head shake under deceleration but generally at lower speeds.
I'd be inclined to go with Chucks suggestions first but if they don't work have a good look at the front tyre wear pattern and pressure.
Title: Re: Handlebar shake at 50mph
Post by: Dirtbag on August 20, 2019, 08:30:14 AM
I had t laugh reading you post . My triumph started doing the same thing , every time I let go of bars at 40-50 mph it started shaking badly last month  . I knew what it was fairly quickly . The front tire , when my triumph did it last month I was going to replace the tire , but I kept riding it and it never got worse , ( the tire has less then 2000 miles ) it is a cupping problem uneven tread wear on my triumph .  I was running 30 psi ( to low ) now I have 36 in it and i still riding it . It only feels bad at around 45 so Iím going to get a few more miles on before replacing it ( itís a pirelli night dragon tire. 21 inch ) i do have a new tire already but I not installing it yet . I have felt it before when the tire tread is uneven . My Bmw F700gs did it a few years ago and the tire was wearing very abnormally. The tire was going out of round , like under the tread a belt was coming apart . I replaced it. I could tell by running my hand over the tire slowly . That was different because it was a unsafe tire. Older tire with a lot of miles , and it might blow out. ( just remember tires can wear uneven in different ways ) and if itís the front your bars will shake .
Title: Re: Handlebar shake at 50mph
Post by: tcbandituk on August 20, 2019, 09:02:29 AM
Could be the front tyre.
Triumph should never have put a  front bias ply tyre on the Tiger, I can only assume it was for budgetary reasons  :015:
I put a 110/80 Radial Tourance on and it's much better.
Title: Re: Handlebar shake at 50mph
Post by: markymark11 on August 20, 2019, 09:59:25 AM
Update - bike has now done 700 miles. I have replaced the front Tourance Next 100/90 with a Tourance Next 110/80 which was balanced again when fitted by a different company from the one that re-balanced the original.

I have checked the torque on all the front components I can think of...Top and bottom fork clamps 20nm, top yoke centre clamp 90nm, Main stem bearing castle nut 15nm, castle lock nut 40nm, handlebar clamps 36nm and 25nm  respectively. Front axle 65nm, pinch bolts 22nm, calipers 21nm .....tyre pressure F36psi  R42psi

.....and it still shakes at 50mph  :002:   

Triumph had it in, re-checked everything the same as me and have no idea what's wrong - "take it away and try it again" they said ...so this week I am going to start on the rear end in case it is being caused by that somehow. I have already changed every suspension setting I can think of over a 2 week period while running in and it can't be dialled out. I am deliberately not carrying luggage - the bike is as supplied brand new with 1 mile on it....the fun continues  :002:
Title: Re: Handlebar shake at 50mph
Post by: Lopez on August 20, 2019, 10:51:43 AM
Had the same shake in The Explorer. Never resolved...
Title: Re: Handlebar shake at 50mph
Post by: Bulldogfour on August 20, 2019, 11:39:35 AM
Yes it's old but maybe instructive on "Wobble and Weave"

https://www.youtube.com/watch?feature=youtu.be&v=z3OQTU-kE2s&app=desktop&fbclid=IwAR0Mlu-NjHDgEEG1djc90n_B7KC9VaMSUOpAi2a1IDZA-4MDf6O7ftrF8pQ
Title: Re: Handlebar shake at 50mph
Post by: Dilbert on August 20, 2019, 12:06:47 PM
Not had that particular problem, but ditched the awful weaving and line following Tourance tyres for Michelin R5 Trails and everythings rock solid, even over the gouges in the road from scraping up tarmac to resurface a roundabout  :028:

First check the tyre pressures  :016:
Title: Re: Handlebar shake at 50mph
Post by: markymark11 on August 20, 2019, 06:49:44 PM
To be fair to it the new Tourance in 110/80 is much better with almost no tramlining at all. No idea why Triumph don't just go with it as standard  :002: - yep tyre pressures are kept spot on. strange one this I have had it on a previous bike and it is always tyre related / balancing etc but this is the second tyre in 700 miles. I have had a straight edge on the wheel rim and spun it up and it runs true.

In 2018 I bought the same bike from the same dealer set up by the same mechanic and it was perfect (until it got written off  :006:) So I know it should be OK... can't quite figure this one out.

Bulldogfour - thanks for that ..mine is not that bad...  lol   I had a Suzuki GT750 "kettle" like the one in the video back in early 80's and that was un-rideable anywhere above 80mph - made me smile  :001:
Title: Re: Handlebar shake at 50mph
Post by: Dirtbag on August 20, 2019, 07:07:48 PM
Sorry for your headache . It is possible also , that the rear tire is causing it . A good repair shop may be able to find it. Get them to recognise the problem .with a test ride . And if they can agree and they see the shake . hopefully they will Chase down the cause
We I ran a auto  repair shop . It was more about making my customers happy and being able to fix anything . If you find a good wrench that will go after it  .a friend had a 1 year old 1200 explorer and it was steering head bearings or triple clamp bearings causing his front end to shake .
Title: Re: Handlebar shake at 50mph
Post by: markymark11 on August 20, 2019, 07:54:21 PM
I am going to look at the rear end this week  :007: and maybe get the rear tyre re-balanced as well. I can't believe that it could come from the factory with a frame / geometery fault so presumably it must be cureable with some kind of adjustment.  :002:  At the end of the day I can always dump it on Triumph's doorstep but for peace of mind I would like to solve the puzzle.

I'm going to start a new post on this at some point but if anyone knows where to fit a steering damper (just in case it comes to it) or a good one to fit - I would like to know ?

Title: Re: Handlebar shake at 50mph
Post by: Dilbert on August 21, 2019, 01:08:23 PM
*Originally Posted by markymark11 [+]
To be fair to it the new Tourance in 110/80 is much better with almost no tramlining at all. No idea why Triumph don't just go with it as standard  :002: -

The wider, lower profile seems better matched to the rear, looking at them in the tyre fitter's last weekend and the Anakee looks like an even better match  :028:
Title: Re: Handlebar shake at 50mph
Post by: Paulhere on August 21, 2019, 03:38:34 PM
Sounds dangerous. Tell the dealer to fix it or replace it. Shouldn't be your problem, you're a customer not a field test engineer.

My XRx came with the Tourance Next, they've now done over 10k miles & still good, I have no problem with them.

Had a problem with my Sprint back in '94, front wheel out of alignment but the symptoms totally different to yours, mine was like warped discs, dealer kept replacing discs, 5 times. Triumph replaced the wheel, discs & pads complete after I clocked the run out dimensions. Customer service was excellent back then.
Title: Re: Handlebar shake at 50mph
Post by: Dirtbag on August 21, 2019, 08:38:12 PM
Yes the rear can do it. When I ran a auto shop I had cars with 1 bad rear tire , it would push the whole front of the car around  . michelin anakee is a great tire I put on pirelli road tire in my bike because I thought they would be better , because I do all street riding , I'm going back to michelin anakee  because they are such a great tire.
Title: Re: Handlebar shake at 50mph
Post by: chico on August 22, 2019, 05:35:42 AM
markymark11,has anyone to you knowledge done a serious wheel alignment check?

Chico
Title: Re: Handlebar shake at 50mph
Post by: markymark11 on August 22, 2019, 07:27:25 AM
Thanks for all the input guys, "Chico" - no not yet thanks for mentioning it I had forgotten to do that - I hope a brand new bike will be "straight" - I will check it this week.

It is provisionally booked to go back to Triumph next week but the bars only shake by about and inch at each end now so it is pretty nearly OK. All the adjustments and re-torquing I have done have helped incrementally so I think it was just badly set up by Triumph and a bit sensitive to small things ...like having an Italian girlfriend  :002: ...not one single thing.
Title: Re: Handlebar shake at 50mph
Post by: AvgBear on August 22, 2019, 06:09:15 PM
*Originally Posted by tcbandituk [+]
Could be the front tyre.
Triumph should never have put a  front bias ply tyre on the Tiger, I can only assume it was for budgetary reasons  :015:
You could be right?
I checked the price at one of my usual tire sellers and for Avon TrailRiders there was $20 USD difference between 100/90/19, bias, and 110/80/19, radial, (with the latter the more expensive).
You'd think, tho, for the thousands of $$$ the bikes cost and just about everyone on this forum decrying the 100/90? -- the few bucks more for the tire everyone seems to want wouldn't've been a deal breaker for The Factory?
Maybe it's something else..?  :191:
Title: Re: Handlebar shake at 50mph
Post by: chico on August 22, 2019, 07:03:19 PM
*Originally Posted by AvgBear [+]
You could be right?
I checked the price at one of my usual tire sellers and for Avon TrailRiders there was $20 USD difference between 100/90/19, bias, and 110/80/19, radial, (with the latter the more expensive).
You'd think, tho, for the thousands of $$$ the bikes cost and just about everyone on this forum decrying the 100/90? -- the few bucks more for the tire everyone seems to want wouldn't've been a deal breaker for The Factory?
Maybe it's something else..?  :191:

The difference in cost for Triumph wouldn't be nearly close to the difference you found at retail for a single tire. Triumph would be purchasing in bulk and large numbers so the diff would be almost inconsequential. As you stated there must be another reason. there are some BMW models that also come from the factory with non radial tires. It might be a mystery to us but there is a reason.

Chico
Title: Re: Handlebar shake at 50mph
Post by: Dirtbag on August 22, 2019, 08:19:09 PM
*Originally Posted by AvgBear [+]
You could be right?
I checked the price at one of my usual tire sellers and for Avon TrailRiders there was $20 USD difference between 100/90/19, bias, and 110/80/19, radial, (with the latter the more expensive).
You'd think, tho, for the thousands of $$$ the bikes cost and just about everyone on this forum decrying the 100/90? -- the few bucks more for the tire everyone seems to want wouldn't've been a deal breaker for The Factory?
Maybe it's something else..?  :191:
Glad you go to the point you can live with , my cupping front tire still shakes but as long as I don't trip on it it's fine.
Title: Re: Handlebar shake at 50mph
Post by: AvgBear on August 23, 2019, 04:07:18 AM
*Originally Posted by Dirtbag [+]
Glad you go to the point you can live with , my cupping front tire still shakes but as long as I don't trip on it it's fine.
Front tire treads have been cupping (more or less) for a long, long, time.
As to whether Triumph goofed-up by putting the 100/90/19, bias, on the front of the T800 v/s the (much preferred by many on this forum) 110/80/19, radial -- well, someone's right (and, someone's wrong).
If it's not about money/profit (as some posters have discussed)?, then it may be a design decision?
Then that leads to the dilemma of whether motorcycles should be designed by "Focus Groups" or by the engineers at the factory?  :187:
Title: Re: Handlebar shake at 50mph
Post by: markymark11 on August 23, 2019, 07:24:59 AM
I don't know much about these things but when I changed from the OEM 100 bias to the 110 radial the bike steered a lot faster and dropped into bends quicker and felt softer. 

Maybe someone can clarify - is the OEM 100 a"harder" tyre, a bit thinner and more suited to the occasional off road venture. The XR range is a road bike but maybe they still wanted to supply a tyre that had some off road ability and thought the 100 was the best compromise...?

The XC of course has off road focused tyres.
Title: Re: Handlebar shake at 50mph
Post by: AvgBear on August 23, 2019, 04:47:01 PM
*Originally Posted by markymark11 [+]
...when I changed from the OEM 100 bias to the 110 radial the bike steered a lot faster and dropped into bends quicker and felt softer.
And maybe those are the sensations that many on the forum are seeking?
Instead of an "all rounder" (as Triumph might've designed the XR to be?) buyers want more of a "sport/roadster"?  :187:   

*Originally Posted by markymark11 [+]
The XR range is a road bike but maybe they still wanted to supply a tyre that had some off road ability and thought the 100 was the best compromise...?
Well, by definition, an all-rounder is a compromise.
Perhaps?, Triumph felt (and, apparently, still feels) the 100/90, bias, contributed more to the "all rounder" experience?  :187:
Title: Re: Handlebar shake at 50mph
Post by: walt on August 23, 2019, 06:52:57 PM
*Originally Posted by AvgBear [+]
And maybe those are the sensations that many on the forum are seeking?
Instead of an "all rounder" (as Triumph might've designed the XR to be?) buyers want more of a "sport/roadster"?  :187:   
Well, by definition, an all-rounder is a compromise.
Perhaps?, Triumph felt (and, apparently, still feels) the 100/90, bias, contributed more to the "all rounder" experience?  :187:



my 2p worth
thinking about this,  i'm not sure the 100 contributes to the "all rounder" much, to me it feels a bit harsh/wooden/clumsy, with poor feedback.....on the small amount of off road ive done, it gives the same feel as on road, feels a bit like its over inflated, so when i change to the 110 i'm hoping for a bit more sensitivity/suppleness overall, i suppose this could be seen as more sporty, but sensitivity is needed off road too....i read somewhere that the 100 was fitted because its more puncture resistant and had stiffer sidewalls, don't know if thats true... :027:
Title: Re: Handlebar shake at 50mph
Post by: RoyHobbs on November 05, 2019, 01:59:12 AM
Did you ever get it sorted out?  I have a 18 XRT with same symptom. 

Thx
Title: Re: Handlebar shake at 50mph
Post by: Linc on June 06, 2020, 10:36:43 PM
Hello all My first post here, I have the same problem with my 2018 800 XCA. I have had 3 sets of tires on the bike and just had the dealer replace the rear rim because it was bumping up and down. This was with the stock tires on. Strangely enough still happening. At the moment I have Michlin Anakee 70/30 tireson brand new. With the brand new rim. I have been running my top box and it seems to be a little more pronounced when the wife is on the back of the bike. Its annoying as hell. And the dealers tech says he does not feel it when test riding. Not something I would NOT expect from such a great bike..
Title: Re: Handlebar shake at 50mph
Post by: Djairouks on June 06, 2020, 10:58:37 PM
*Originally Posted by Linc [+]
Hello all My first post here, I have the same problem with my 2018 800 XCA. I have had 3 sets of tires on the bike and just had the dealer replace the rear rim because it was bumping up and down. This was with the stock tires on. Strangely enough still happening. At the moment I have Michlin Anakee 70/30 tireson brand new. With the brand new rim. I have been running my top box and it seems to be a little more pronounced when the wife is on the back of the bike. Its annoying as hell. And the dealers tech says he does not feel it when test riding. Not something I would NOT expect from such a great bike..

These issue usually come from the chassis level being wrong, because rear preload settings are too low,
I'm 74Kg without gear and measuring rear sag, I need to set preload at 22 clicks, when the manual tells
you solo riding is 5 clicks for the XRT.
So you see the shock is unfortunately undersprung, using the luggage then to load the bike, my math
told me that if my passenger exceeds 70Kg the shock isn't capable !

So try increasing preload to reach correct sag on your XCA, you might like the results !

TBH most modern bikes have undersprung rear shocks, my Africa twin was even worse, 40Kg of load was
enough to compromise chassis level and at high speeds, with max preload it was pretty awfull.
Title: Re: Handlebar shake at 50mph
Post by: K1W1 on June 07, 2020, 12:33:23 AM
*Originally Posted by Djairouks [+]
I'm 74Kg without gear and measuring rear sag, I need to set preload at 22 clicks,

Just for the sake of clarity it should be pointed out the XCA and XRT have completely different suspension systems with different brands of suspension fitted and different geometries.
The advice about settings should be taken as generic not specific.
Title: Re: Handlebar shake at 50mph
Post by: 9w6vx on June 07, 2020, 07:06:12 AM
Add on to Djairouks info who is on a XRT, I am on a 2018 XR.

The owners handbook for XR/XRX variant states standard rear preload is 30 clicks anti-clockwise from fully clockwise (closed) for solo riding.

I weigh 91kgs without riding gear and to get the right sag, my personal preload setting is 10 clicks anti-clockwise from fully closed.
This cures my rear end which is sitting too low.
Title: Re: Handlebar shake at 50mph
Post by: Djairouks on June 07, 2020, 07:20:43 AM
*Originally Posted by 9w6vx [+]
Add on to Djairouks info who is on a XRT, I am on a 2018 XR.

The owners handbook for XR/XRX variant states standard rear preload is 30 clicks anti-clockwise from fully clockwise (closed) for solo riding.

I weigh 91kgs without riding gear and to get the right sag, my personal preload setting is 10 clicks anti-clockwise from fully closed.
This cures my rear end which is sitting too low.

Sorry if I made it unclear as there's 36 max clicks, it means your 10 CCW are 27 CW so 5 more clicks than
me at 74Kg, which makes sense as you're heavier, I just find the preload is more logic being looked at from
clockwhise, as you add weight, you add clicks, you don't go to max and remove preload.

If the XRT is undersprung and manual settings aren't good, there is good chance the XCA suffers from the
same problem, that's why I pointed this out even if suspensions are different.

"Most headshake problems, especially with an application of sports/touring come from the rear shock.
It unloads the front as the back squats too far, and this causes headshake in most situations."
http://www.promecha.com.au/myths_misconceptions.htm#F

I know about this, as I said because on the Africa twin it was extremely apparent and like most owners, I
needed to upgrade the spring with a hyperpro that was stiffer, to have an acceptable range, the XRT is just
acceptable, not great but I can live with it for now as I'm a lightweight rider.
Title: Re: Handlebar shake at 50mph
Post by: daveboy1965 on June 07, 2020, 11:30:06 AM
Mine only did it with the top box on.. Have you got the sliding chassis fitted??
Title: Re: Handlebar shake at 50mph
Post by: Linc on June 07, 2020, 11:58:56 AM
Thanks for the info Im riding today without the box and I will check the pre-load. Good info.. I love this bike and Im getting very frustrated with the dealer and the lack of interest trying to get this issue resolved. Im checking the owners manual for the adjustment on my 800XCA

 
Title: Re: Handlebar shake at 50mph
Post by: Djairouks on June 07, 2020, 12:08:53 PM
*Originally Posted by Linc [+]
Thanks for the info Im riding today without the box and I will check the pre-load. Good info.. I love this bike and Im getting very frustrated with the dealer and the lack of interest trying to get this issue resolved. Im checking the owners manual for the adjustment on my 800XCA

Unfortunately you can't rely on the manual that was the point, because the manual gives broad
settings for a supposed rider weight. I'ts annoying but if you want the correct sag, you need to
measure the distance from wheel axle to a reference point near the saddle (on center stand), then
have someone look at this exact distance with you on the bike on the ground both feets on the pegs.

Rear shock travel is 215mm, the rule is you want rider sag to be around 30%, so the difference of
measurement on center stand, to you on the bike on the ground should roughly be 65mm lower,
you'll see that with manual settings, it might be around 80-90mm or something and that's a problem.

Hope this will resolve your issue and you'll have fun like all us other proud owners !
Title: Re: Handlebar shake at 50mph
Post by: Linc on June 07, 2020, 01:07:42 PM
*Originally Posted by Djairouks [+]
Unfortunately you can't rely on the manual that was the point, because the manual gives broad
settings for a supposed rider weight. I'ts annoying but if you want the correct sag, you need to
measure the distance from wheel axle to a reference point near the saddle (on center stand), then
have someone look at this exact distance with you on the bike on the ground both feets on the pegs.

Rear shock travel is 215mm, the rule is you want rider sag to be around 30%, so the difference of
measurement on center stand, to you on the bike on the ground should roughly be 65mm lower,
you'll see that with manual settings, it might be around 80-90mm or something and that's a problem.

Hope this will resolve your issue and you'll have fun like all us other proud owners !

Thanks, I just went out in the garage and found the pre load adjuster. I am familiar with sag settings from all my years of motocross and harescramble racing. I didnt have the issue with my XCA early on with the stock tires or even when I went to the Mitas e07 tires. When I tried the michlin Anakee is when I really noticed the issue. I thought the tires were defective and sent them back.. Im sure at 3500 miles things break in. My rear rim was defeniatly odd around to the point that Triumph warrantied the wheel.

I will work on the suspension settings and repost.. As I said I love this bike and want to keep it for a long time..
Title: Re: Handlebar shake at 50mph
Post by: Djairouks on June 07, 2020, 01:17:04 PM
*Originally Posted by Linc [+]
Thanks, I just went out in the garage and found the pre load adjuster. I am familiar with sag settings from all my years of motocross and harescramble racing. I didnt have the issue with my XCA early on with the stock tires or even when I went to the Mitas e07 tires. When I tried the michlin Anakee is when I really noticed the issue. I thought the tires were defective and sent them back.. Im sure at 3500 miles things break in. My rear rim was defeniatly odd around to the point that Triumph warrantied the wheel.

I will work on the suspension settings and repost.. As I said I love this bike and want to keep it for a long time..

I also have these new anakee and took me 3 days of settings to get proper suspension, now they
feel pretty amazing, but you need to adjust everything.
There's no brand of motorcycles especially ADV, nowadays, that have good settings in the manual
from my own experience, so you need to measure it every time unfortunately.

Hopefully your shock is not defective, this is rare but sometimes happens, will look forward to your
feedback man !
Title: Re: Handlebar shake at 50mph
Post by: Linc on June 07, 2020, 01:22:14 PM
*Originally Posted by Djairouks [+]
I also have these new anakee and took me 3 days of settings to get proper suspension, now they
feel pretty amazing, but you need to adjust everything.
There's no brand of motorcycles especially ADV, nowadays, that have good settings in the manual
from my own experience, so you need to measure it every time unfortunately.

Hopefully your shock is not defective, this is rare but sometimes happens, will look forward to your
feedback man !
[/quote

That would be my luck!! LOL I did check the shock for leaks etc none found luckily the bike is still covered under warranty for another year. Thanks for all ur help. The tech at my dealership is pretty good but he can not feel the issue and that bothers me.
Title: Re: Handlebar shake at 50mph
Post by: Linc on June 09, 2020, 12:59:33 AM
So I took a solo ride yesterday no top box.. stock settings and it still does it. I checked the preload and my bike has a allen head no clicks when I turn it so I gave it a 3/4 turn and will ride it to work tomorrow. I never set the sag on this bike either so I will stop in at my dealer and have him give me a hand with it..

Title: Re: Handlebar shake at 50mph
Post by: Djairouks on June 09, 2020, 07:26:12 AM
*Originally Posted by Linc [+]
So I took a solo ride yesterday no top box.. stock settings and it still does it. I checked the preload and my bike has a allen head no clicks when I turn it so I gave it a 3/4 turn and will ride it to work tomorrow. I never set the sag on this bike either so I will stop in at my dealer and have him give me a hand with it..

Sorry for the clicks, the XRT has half turn clicks and the adjuster is different, because
full range is 36 clicks and manual says standard setting is 31 CCW from full.

For XCA it says normal setting is 9 turns CCW from fully screwed, I have no clue what
the full range of turns is, but imagine there's 15 and you're at 9, you then added 3/4,
it ain't going to do squat, if like on the XRT people need to make half as much turns
as the manual says.

Yes everyone should be setting the exact sag, because I didn't ask but, I'm 74Kg which
is in the light riders, I guess if you'd be 120Kg that's a huge difference.

Title: Re: Handlebar shake at 50mph
Post by: Linc on June 10, 2020, 12:35:11 AM
I weigh in at 227 lbs no gear.. the XCA has a screw to set the sag too. Im going to do that this weekend.
Title: Re: Handlebar shake at 50mph
Post by: Linc on June 26, 2020, 02:18:13 AM
So after going through the suspension all was perfect sag etc. My issue was not so much headshake it was a wobble between 35 and 50 mph and especially on deceleration.. The verdict is, I had a set of defective Michelin Anakee 2CP tires. The place I bought them from said they were getting alot of returns on these tires for that issue. I fitted a set of Mitas E07 tires on the bike and even though more aggressive as smooth as a babies bottom going down the road. I love my bike again!!
Title: Re: Handlebar shake at 50mph
Post by: chico on June 26, 2020, 04:56:19 AM
We love happy endings, ride safe.

Chico
Title: Re: Handlebar shake at 50mph
Post by: Linc on June 28, 2020, 02:18:58 AM
Hey Chico, do you ride in this area? Im up near Milford PA
Title: Re: Handlebar shake at 50mph
Post by: chico on June 28, 2020, 05:26:08 AM
Linc, I sent you a PM.

Chico
Title: Re: Handlebar shake at 50mph
Post by: nadtiger on June 30, 2020, 05:01:37 AM
I noticed this shake 500ish miles ago, upgraded my forks with AK-20 cartridges and still have it.
My tires are to the end (shinko 705s), hopefully new tires (anakee adventure)will fix this.
Title: Re: Handlebar shake at 50mph
Post by: rantanplan on July 09, 2020, 10:12:03 AM
*Originally Posted by Djairouks [+]
Unfortunately you can't rely on the manual that was the point, because the manual gives broad
settings for a supposed rider weight. It's annoying but if you want the correct sag, you need to
measure the distance from wheel axle to a reference point near the saddle (on center stand), then
have someone look at this exact distance with you on the bike on the ground both feets on the pegs.

Rear shock travel is 215mm, the rule is you want rider sag to be around 30%, so the difference of
measurement on center stand, to you on the bike on the ground should roughly be 65mm lower,
you'll see that with manual settings, it might be around 80-90mm or something and that's a problem.

Hope this will resolve your issue and you'll have fun like all us other proud owners !


agree with sag settings, but......
when i did my homework with my sag settings to my 2019 XC, being 76kgr with all my gear i thought that everythink will be nice because i consider my self the average driver(as they say for factory settings), but NO, Triumph says 9 turns on the back and i needed 5 for having the correct sag which is close to the loaded recommendation, o.k with that, but when i measured the front i had a measurement of 89cm instead of 66(30%) or 77(35%) from the 220 travel, so the bike will be unbalanced if i set the rear sag and can't set the front sag, when i tryed to loose all the turns of the rear just to check the balance i found that the rear has 10,3 turns and that gave me a measurement of 76(215)
so the bike from factory has a perspective of 40%(220) front and 35%(215) rear
because of the bike having only 13000km I'm thinking that there is a possibility maybe having less oil from factory at the front, haven't check it yet but will......
have been disappointed with sag settings of the bike for my average kgr.......
Title: Re: Handlebar shake at 50mph
Post by: Djairouks on July 09, 2020, 10:48:54 AM
*Originally Posted by rantanplan [+]

agree with sag settings, but......
when i did my homework with my sag settings to my 2019 XC, being 76kgr with all my gear i thought that everythink will be nice because i consider my self the average driver(as they say for factory settings), but NO, Triumph says 9 turns on the back and i needed 5 for having the correct sag which is close to the loaded recommendation, o.k with that, but when i measured the front i had a measurement of 89cm instead of 66(30%) or 77(35%) from the 220 travel, so the bike will be unbalanced if i set the rear sag and can't set the front sag, when i tryed to loose all the turns of the rear just to check the balance i found that the rear has 10,3 turns and that gave me a measurement of 76(215)
so the bike from factory has a perspective of 40%(220) front and 35%(215) rear
because of the bike having only 13000km I'm thinking that there is a possibility maybe having less oil from factory at the front, haven't check it yet but will......
have been disappointed with sag settings of the bike for my average kgr.......

Well it's always disappointing when this kind of issues happen with sag, but your issue is not the same because you
have an XC and my explanation for OP is about XR suspensions, on my XRT weighing ~78 with kit, the front sag is
within the 30-33% range, it's just the rear that lacks preload.

But I feel for you man, had as much problems on my Africa twin, the rear was sh*t almost maxed for my weight and
I thought i'd die the first time I went on german highways, the front would shake so bad from 140 to 160, really
dangerous and scary !
Hyperpro spring was the solution, but really paying a 15K bike to have to change the spring is a joke.