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Offline Britigerider

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16 or 17 TOOTH FRONT SPROCKET?
« on: August 12, 2020, 03:58:04 PM »
Sorry guys, l know this has been discussed over & over, but l would like answers to my needs for mainly fast twisties mixed with distance freeway/motorway riding.
I have at present got the standard set up (34k miles on the original sprockets, & 1 chain replaced!)
I hear that a 17 tooth front is better for my style of riding, but can l leave the rear sprocket as a 50 toother because when l look at the "bundle" options the company that sells them changes the rear sprocket size say to a 17/46 set up or similar.

Where can l get (probably better from a USA distributor) a 17 cush front with a 50 rear (if it's workable) with a decent chain as a bundle deal?

Offline NORTY

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Re: 16 or 17 TOOTH FRONT SPROCKET?
« Reply #1 on: August 12, 2020, 04:45:45 PM »
You'll likely have to assemble that kit.

Welcome to the site, btw!
MSF RIDERCOACH (RETIRED!) :)

I also ride my Husqvarna 701 Enduro. (Been known to ride the "Vet" track @ Fox Raceway.) If you see and old, fat guy on a 701E, it's likely me!

Believe it or not, I'm down to 2 bikes!

Offline Britigerider

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Re: 16 or 17 TOOTH FRONT SPROCKET?
« Reply #2 on: August 12, 2020, 04:53:00 PM »
Thanks for the welcome Norty.
Yeh, after looking at various suppliers l think you may be right....at he moment l'm leaning towards JT products 1/ because they get good write ups, 2/ because they aren't silly money & 3/ because they are based in the USA as well as the UK.

http://www.jtsprockets.com/

Offline Paulhere

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Re: 16 or 17 TOOTH FRONT SPROCKET?
« Reply #3 on: August 12, 2020, 05:09:24 PM »
*Originally Posted by Britigerider [+]
l would like answers to my needs for mainly fast twisties mixed with distance freeway/motorway riding.

Stock gearing is imo best compromise for mixed riding.
Current bikes Tiger800 XRx, Tiger Sport 1050, Ariel FH 650, Yam Serow 225.

Offline Britigerider

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Re: 16 or 17 TOOTH FRONT SPROCKET?
« Reply #4 on: August 13, 2020, 12:50:25 AM »
Thanks to both of you for bothering to reply..............

I've ordered the17 toot cush mounted front, a 50 tooth rear, & a 525 Z ring chain all from JT Sprockets via BikeBandit.com & got it all at a great price BTW!

Offline K1W1

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Re: 16 or 17 TOOTH FRONT SPROCKET?
« Reply #5 on: August 13, 2020, 01:36:33 AM »
The advantage of sticking with a 50 tooth rear is that you do not need to change the length of the chain so if you want to go back to a 16 tooth front later on it is a straight sprocket swap.

If you do the maths on the ratios this is what you get.
Assuming that the standard gearing (16/50) speed equals 4000 rpm (roughly 60 mph) then
at the same speed with 17/50 you will be revving at 3800 rpm
with 16/46 you will be revving at 3680 rpm
with 17/46 you will be revving at 3460 rpm

A sprocket change affects all gear ratios so first gear in particular will be higher and more susceptible to stalling and more difficult to start facing uphill with higher ratios. You won't notice it much with 17/50 but you would with the other ratios.

Offline Djairouks

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Re: 16 or 17 TOOTH FRONT SPROCKET?
« Reply #6 on: August 13, 2020, 09:36:04 AM »
17/46 would be pretty terrible all gears taller, so less 6th overdrive on highways you might need,
to downshift for overtakes, that gearing overall increases top speed of 15%, that's a lot.

Changing 1 tooth up or down in front is all one needs really.

Offline Neogas

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Re: 16 or 17 TOOTH FRONT SPROCKET?
« Reply #7 on: August 13, 2020, 03:23:09 PM »
I am running 17/50 (standard rear) and it improves highway riding enough for me and I find that 50/80kmh runs have changed little. I use 2nd gear more than 3rd than I used to in villages but only if its dropping below 40, etc. But at 80kmh cruising I am still in 5th and able to pass slower traffic safely. At 120kmh its okay to overtake in 6th
"Never ride faster than your guardian angel can fly."
― Anonymous

Offline Djairouks

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Re: 16 or 17 TOOTH FRONT SPROCKET?
« Reply #8 on: August 13, 2020, 05:25:55 PM »
*Originally Posted by Neogas [+]
I am running 17/50 (standard rear) and it improves highway riding enough for me and I find that 50/80kmh runs have changed little. I use 2nd gear more than 3rd than I used to in villages but only if its dropping below 40, etc. But at 80kmh cruising I am still in 5th and able to pass slower traffic safely. At 120kmh its okay to overtake in 6th

Noticeable fuel savings or opposite runing in lower gears then !?

Offline Neogas

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Re: 16 or 17 TOOTH FRONT SPROCKET?
« Reply #9 on: August 13, 2020, 07:23:14 PM »
Definitely saving fuel and vibes.

By the way.....I passed through Neuchtel today and saw two Tiger XRTs (17-on) one blue and one red! No luggage so I guess they were local. Many around there?
"Never ride faster than your guardian angel can fly."
― Anonymous

 


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