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post #1 of 12 Old 04-28-2009, 5:36 PM Thread Starter
 
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New sprockets

Just changed my sprockets -1 in the front and +1 in the back.
!!!!!!!!!!!!!!WOW THATS A BIG DIFFERENCE!!!!!!!!!!!
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post #2 of 12 Old 04-28-2009, 5:54 PM
 
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Re: New sprockets

I know this helps with acceleration, but how about putting around on hwy's at hwy speeds? Does it seem that you are always shifting up and down or not? Just wondering, I am trying to decide if I am going to do this or not.
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post #3 of 12 Old 04-28-2009, 6:36 PM
 
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Re: New sprockets

on a 929, youll cruise at about 6k at 70mph. No problem at all, and much much more fun.
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post #4 of 12 Old 04-28-2009, 8:24 PM
 
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Re: New sprockets

Dont forget the speedo healer.
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post #5 of 12 Old 04-28-2009, 9:23 PM
 
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Re: New sprockets

I ordered a 15 tooth front sprocket today. I'm just going to go -1 on the front and call it good for now. I like the idea that I can still go 160 if I want to. not that I will do that almost ever
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post #6 of 12 Old 04-28-2009, 10:25 PM Thread Starter
 
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Re: New sprockets

the RPMs kicked up a little on the highway but not to a point where its anything to complain about....you do shift more but the torque difference makes it wayyy worth it. sixth gear on the highway pulls like third would...

i have a speedo-healer but its not installed yet
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post #7 of 12 Old 04-29-2009, 4:49 AM
 
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Re: New sprockets

I have a 110 link chain lying around. How many teeth a back sprocket do I need to maintain stock wheelbase?
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post #8 of 12 Old 04-29-2009, 5:27 AM
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Re: New sprockets

Quote:
Originally Posted by ag1s View Post
I have a 110 link chain lying around. How many teeth a back sprocket do I need to maintain stock wheelbase?
I'm not sure what you mean.
Do you mean how large can you go on the rear without needing a longer chain?
I wouldn't think you couldn't go more than +1 on the rear although +2 might be possible if you wrap the chain around the sprocket before putting the axle through. I try to do this on all my bikes as I like the shortest possible wheelbase.
Or do you mean, how long a chain do you need with the stock sprockets to keep the original wheelbase?
Stock is 108 links with both the 42 and 43 tooth rears. Theoretically, the smaller rear gave the non-US bikes a 5mm longer wheelbase.

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post #9 of 12 Old 04-29-2009, 5:41 AM
 
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Re: New sprockets

My bike has 108 chain and 16/42 sprockets. I do have a 110 link chain from a yamaha thunderace which I want to use since my blade chain is about to retire. If I am to use the 110 link chain without cutting it down to 108 links, then what rear sprocket should I get?
From what you say above, I guess I should go to 44 or 45 teeth on the back for the 110 chain.
I dont actually mind a slightly shorter wheelbase, provided chain is not too tight when adjusters are fully forward.
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post #10 of 12 Old 04-29-2009, 5:45 AM
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Re: New sprockets

Quote:
Originally Posted by ag1s View Post
My bike has 108 chain and 16/42 sprockets. I do have a 110 link chain from a yamaha thunderace which I want to use since my blade chain is about to retire. If I am to use the 110 link chain without cutting it down to 108 links, then what rear sprocket should I get?
From what you say above, I guess I should go to 44 or 45 teeth on the back for the 110 chain.
I dont actually mind a slightly shorter wheelbase, provided chain is not too tight when adjusters are fully forward.
I would think 44 would fit.
And 45 _might_ fit.
Personally, I'd just cut the chain unless you specifically want to lower the gearing.
I've always decided the gearing I wanted first and cut the chain to fit it.

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post #11 of 12 Old 04-29-2009, 5:51 AM
 
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Re: New sprockets

Thanks. I want a shorter gearing, but not as aggressive as the -1 on the front. Something that would make my now 5th gear a 6th if that makes sense (about 5% shorter gearing). Going from 42 to 44 is more or less what I want.
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post #12 of 12 Old 04-29-2009, 6:12 AM
 
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Re: New sprockets

Gearing Commander: Motorcycle Gearing Ratio Sprocket RPM Speed Chain Calculator is a great site to play around with the sprocket sizes and see how they will affect your speed in different gears

Will also tell you the change in wheelbase and chain length if I remember correctly.
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