Sprocket Sizes??
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Jaicen
- Settled in member
- Posts: 200
- Joined: Thu Jan 15, 2009 12:34 am
- Bike owned: GK76SP & ER6F
Sprocket Sizes??
Ok, I need to replace my chain and sprockets on a GK76a.
I was thinking about it, and it occurred to me that I'd quite like to improve the accelleration, or at least spin up a bit quicker. My bike's an SP, so it has a close ratio box (tall first gear ~55mph@11kRPM) that really works best above 6k, but around town, it's rarely above 4k unless I hold it in the first three gears.
Also, given that it's limited to 110mph, in 6th gear, top speed is around 10k RPM, leaving 2k spare.
I was thinking that i'd rather have the acceleration to get up to speed quicker even if that loses a little top end cruising ability.
So, with that in mind, does anyone have any experience of changing sprocket sizes? Are there any readily available at all!?
I was thinking about it, and it occurred to me that I'd quite like to improve the accelleration, or at least spin up a bit quicker. My bike's an SP, so it has a close ratio box (tall first gear ~55mph@11kRPM) that really works best above 6k, but around town, it's rarely above 4k unless I hold it in the first three gears.
Also, given that it's limited to 110mph, in 6th gear, top speed is around 10k RPM, leaving 2k spare.
I was thinking that i'd rather have the acceleration to get up to speed quicker even if that loses a little top end cruising ability.
So, with that in mind, does anyone have any experience of changing sprocket sizes? Are there any readily available at all!?
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Variablevalves suck
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- Bike owned: GSXR Carb o'ring kits supplied
- Location: Stoke-on-trent
Re: Sprocket Sizes??
Hi J,
The JT code for the rear is 807 rear and 433 front for the 76A, you can go bigger or smaller. Remember you may need a longer or shorter chain.
The JT code for the rear is 807 rear and 433 front for the 76A, you can go bigger or smaller. Remember you may need a longer or shorter chain.