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Sprocket question

 
s_gsxr600 s_gsxr600
New User | Posts: 10 | Joined: 03/09
Posted: 11/11/09
06:42 AM

I was wondering if it is possible to swap my sprockets out and keep my stock chain? I have an '07 GSXR600. The chain is in fine condition, I clean and lube it regularly. The bike is quick I just need more acceleration out of it. I don't want to have have shell out an extra $100 for a chain when mine is still in good condition. I want to go -2 in the front and +2 or 3 in the back. Is that possible? Thank you in advance for any info.  

 
kento1 kento1
Administrator | Posts: 981 | Joined: 09/07
Posted: 11/11/09
09:48 AM

Yes, you can keep you stock chain if you want, but you're going to have to get a chain breaker and a proper size master link (stock chains are endless, they don't have a master link), because the chain will be too long.

Actually, dropping two teeth on the front countershaft sprocket in addition to two-three teeth on the rear sprocket is shortening your gearing far too much unless you're only interested in drag racing. If you're just interested in quicker acceleration while still keeping it rideable on the highway, you're better off just dropping two to three teeth on the rear sprocket.  

 
s_gsxr600 s_gsxr600
New User | Posts: 10 | Joined: 03/09
Posted: 11/11/09
10:22 AM

You said "you're better off just dropping two to three teeth on the rear". I thought dropping teeth in the rear would ruin my acceleration? I thought acceleration could be gained by either increasing teeth on the rear sprocket or losing teeth on the front sprocket?  

 
s_gsxr600 s_gsxr600
New User | Posts: 10 | Joined: 03/09
Posted: 11/11/09
02:06 PM

Ah, I just read one of your tech articles about gearing. I used your formula to find out what the top speed of my bike with stock gearing and what it would be if I changed it. Now I see why you said -2 in the front and + 3 in the back would be too much. I'm thinking now of going with a -1 in the front and +1 or 2 out back. With a -1 in the front and +2 in the rear my estimated top speed would be around 153ish, which I can live with. I will also go ahead a probably upgrade to a 520 chain while I am at it. I might as well.

Thats brings me to another question. What will I have to use to get the stock chain off and what will I have to do to get the new one on? And will I have remove any links from the new chain?  

 
kento1 kento1
Administrator | Posts: 981 | Joined: 09/07
Posted: 11/11/09
04:01 PM

Sorry, meant to say "add" teeth to the rear sprocket. Dropping a tooth on the countershaft and adding two to the rear should gain you a decent amount of acceleration.

Best method to get the stock endless chain off is to use a chain breaker (available from places like Motion Pro). The chances are very good that you'll have to take off some links from a new chain to get it to fit properly on your bike with the gearing you've chosen, so having a chain breaker is a good investment.  

 
s_gsxr600 s_gsxr600
New User | Posts: 10 | Joined: 03/09
Posted: 11/11/09
08:27 PM

Thanks Kent. Much appreciated.  

 
kento1 kento1
Administrator | Posts: 981 | Joined: 09/07
Posted: 11/14/09
06:22 PM

No worries, glad to help.  

 

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