redhenracing2

Well, the doctor says I need to replace my chain and sprockets. Im not a pro, but just based on looks I would say he is right. Since the sprockets need to be replaced, I would like to change it up a bit. On the gs forums, many people have had DRASTIC results using a 14t front (stock is 16t). So, I would like to do this.

Question 1: if I go down two teeth in the front, need I change the rear? can i just replace it with an oem sprocket or does it need to balance out or anything like that? stock rear is 46t I beleive.

Question 2: Need the chain be replaced with one of a different size? Should the smaller front sprocket require a shorter chain? Stock is 110 links, would going with a 108 be beneficial?

Question 3: Will this alter the speedometer reading? If you are not familiar with gs's, the speedo feeds off the front wheel. I dont know if this is different from most other bikes, but I have heard of people having speedo trouble with different sprockets. In my case, having the speedo driven from the front wheel, I would assume that changing anything in the driveline (gearing, rear tire, etc) could not have an effect on speedometer calibration. Some people on the gs forums argued the opposite though, just wanted to see what ya'll thought.

Any and all help is appreciated

jlh42581

edit: doubt you will need a healer

you will need a new chain never change sprockets without a new chain unlss the mileage has been really low

everytime you drop a tooth up front its like going up 2-3 in the rear

DIRTYJEFF636s

plus going down in the front wears down the chain faster then going up in the rear, the chain has to make a tighter turn around the smaller sprocket

redhenracing2

i was recommended an RK 520 chain, and told that it would be able to handle the extra strain. i needed a new chain anyway. thoughts on whether this chain will be able to hang?

DIRTYJEFF636s

can't say

montijo_420

i didnt touch the front on mine just cause it is not needed get a good one for the rear and run a 525 i never liked 520 but then agin that my
my boy rocked a stock srpocket on his zx6 and rock circles for days so it not the size that matters its how u use it i would just touch up the back and run a 525 make sure your front sprocket is 525 first

Dat_Boi

I'd go down 1 up 12 but thats me. Lol really tho prolly down 1 up 5 520 conversion. Many ppl knock 520's but ive had them on my 1k's, 954, f4i etc never a problem. Make sure its a o-ring or x-ring tho. Good luck