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Main Area => Projects / Builds, Racing and Tech => Topic started by: W201028 on October 09, 2010, 06:46:35 PM

Title: 15 tooth sprocket question
Post by: W201028 on October 09, 2010, 06:46:35 PM
Hello, new member here. I ride a 2009 F and I love it. However, its a bit slow off the line compared to my other bikes. I am considering switching to a 15t front sproket to increase acceleration at low rpm. Can anyone who has done this tell me if I will have to cut my chain, or can I simply adjust the slack out with the stock tensioners? Any experienced rider who can share some wisdom will be appriciated. Thanks
Title: Re: 15 tooth sprocket question
Post by: Big Rich on October 09, 2010, 08:27:01 PM
You are actually supposed to replace both sprockets and the chain together. But if you just want to see how a 15t sprocket feels, you'll be ok.

You can just mess with the adjusters (depending how far back your axle is now of course)
Title: Re: 15 tooth sprocket question
Post by: burning1 on October 09, 2010, 11:43:51 PM
This is more of a 'general' question than it is a track or racing question.
Title: Re: 15 tooth sprocket question
Post by: redhenracing2 on October 14, 2010, 11:28:41 AM
Never tried a 15t, but I had a 14t on mine and I just barely had to take a link out. You would probably be fine with a standard sized chain, just towards the end of its adjustment.
Title: Re: 15 tooth sprocket question
Post by: []V[]addog on October 15, 2010, 05:10:55 AM
I actuly just got this done, and had lots of slack in my chain before. and i still didnt need to take a link out.  you should be good for the 15T. I find it makes hte biek feel more peppy, and i do alot of riding on none devided highways, so I find it keeps hte RPM's in a better range.
i think in top gear. Instead of 6000 rpm doing 120 km/h  it is now 6400 ... small price to pay for the extra get up and go
Title: Re: 15 tooth sprocket question
Post by: JB848 on October 26, 2010, 09:48:26 PM
A stock bike can handle the switch between a 14 and a 15 with no problem. :thumb:
Title: Re: 15 tooth sprocket question
Post by: Aussie GS500F 06 on October 31, 2010, 07:30:50 PM
I did the swap about 2 months ago. Bike is heaps better to ride in traffic.  :thumb:
Title: Re: 15 tooth sprocket question
Post by: donavon on November 01, 2010, 08:25:01 AM
just did it yesterday..no need to cut chain however i had to put a spacer because the jt sprocket 15 t didnt have a riser in the back..youll see.
Title: Re: 15 tooth sprocket question
Post by: JB848 on November 01, 2010, 10:57:55 PM
If you cut the chain you're doing somthing wrong. Is there something wrong with JT sprockets?
Title: Re: 15 tooth sprocket question
Post by: Aussie GS500F 06 on November 02, 2010, 08:35:38 PM
If you buy the right sprocket you won't (don't) need a spacer. there is a reason for suzuki putting the extra step in the sprocket! it has something to do with more material making contact with the output shaft.

if your chain and sprockets are in good condition it's a 5 min job to swap them over if you need to replace your chain and sprockets its about an hrs work
Title: Re: 15 tooth sprocket question
Post by: Big Rich on November 04, 2010, 01:24:09 AM
Quote from: Aussie GS500F 06 on November 02, 2010, 08:35:38 PM
If you buy the right sprocket you won't (don't) need a spacer. there is a reason for suzuki putting the extra step in the sprocket! it has something to do with more material making contact with the output shaft.

The reason some sprockets dont have the step behind them is because it's easier to produce for multiple bikes. 2 different bikes may have the same mounts, spline count, chain width, etc., but one has a step and the other doesnt. Not a terribly big deal, but worth watching out for.
Title: Re: 15 tooth sprocket question
Post by: average on December 03, 2010, 05:16:03 PM
Quote from: donavon on November 01, 2010, 08:25:01 AM
just did it yesterday..no need to cut chain however i had to put a spacer because the jt sprocket 15 t didnt have a riser in the back..youll see.

You're running the wrong sprocket for your year if you had to use a spacer. As long as it works... 8)