i just put r15 rear sprocket on my fz ,why do you want a fz sprocket ,
i got more initial power ,and higher revs just like i wanted it to have ,
so r15 wud get lower intial power ,torque, & ur milege wud increase,
i doubt u wud like it ,why lower ur power after shelling out 1 lakh
try to get the 44 tooth for ur bike from the racing kit ,

So just clear me out..
Fz has bigger sprocket compared to r15 or smaller.
Till now I thought it to be bigger than R15's.
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Did you buy only the rear sprocket of R15 or the whole kit of the R15?? because even I'm searching for the rear sprocket alone and everywhere they sell it only as whole kit (i.e, Rear sprocket, Front sprocket and chain), Please tell me the place if you know where i can find only rear sprockets..

FZs rear sprocket is smaller. Its two teeth lesser than the R15, and a direct fit.

So if you fit the R15 sprocket to the FZ, you get great acceleration. If you fit the FZ to the R15, you get higher gearing. dunno if it would translate to a higher speed ( i doubt the speed will increase, due to the load it will drop, but it has improved driveability ). .


No, you can buy the sprockets individually, and it is sold individually.


I installed the smaller sprocket, and drove for about 10 kms right now. The bike is geared taller, im hitting 50 easy in second, and more than 80 in third. The bike is doing 80 @ 5400 rpm in 6th.

I as is ride the bike in the 7-8k rpm band for shifting, and dont let the revs stay below 4k rpm. So my concern of stressing the engine with the higher gearing stay in check.

Further i ride the bike solo. So that is another issue that the engine will not be strained too much. I just wanna see how the bike runs at the top end.. maybe ill hit 130 in 5th!!! lol!!! though people who've experimented with it could tell more.

Its not about spending 1 lakh and spoiling a bike.. its about know what variations you can try with it.

Hey, AFAIK, a smaller rear sprocket increases the top end, bike is geared taller, and you lose the initial acceleration. A larger rear increases acceleration, reduces top end.

For the front, its vice-versa. A larger one will make the gearing taller, and increase the top end, and a smaller will give you good initial acceleration and reduce top end.

So if you have a smaller, your acceleration should have increased, and gearing should have become shorter...

EDIT: Whoops, I confused which sprocket you changed. Front or rear? Must be rear...

^^ rear... listen. pm me you phone number.. ill call u for the part u need.

I think its something like 38,68,98,108 and 128~135 from 1st to 5th gear respectively with the stock sprocket.

The 6th gear might very well become unusable( i mean it might just hold to speeds and forget about accelerating in it.)

^^ yup, but im sure this will surely be useful if one is planning a long trip on it. the ability to cruise at higher speeds with the engine running at a lower rpm, will help the engine a lot.

how much did you pay for labour ,i got it done at a local shop for 70rs,
if i am going for touring i wud change to the stock sprockets, cuz with the r15 gearing the milege has dropped a bit,
first time i rode it with the r15 sprockets i could not belive how much pick-up the fz has in 30-60kmph,u can literally feel the g forces ,
so can imagine what u had felt ,i.e loss of power

^ A small piece of advise. Sprocket and chain are mating parts, If one is changed, other has to be changed too.

@ JD - I feel R15 has the best cruising ablity in the sixth gear. I really dont think for the need of a taller sprocketing in R15 if your internals are stock.

Even with the current sprocketing, 15 runs out of gas in the 6th gear. Its just my view buddy.

best fully synthetic engine oil for R15

hi guys
i have been using castrol power one racing , the throttle response, so as the accln hav improved lots.will this be same if i use motul 300v 10w40.
plz advise

@gp freak - i totally agree with you man.. the bike simply dies out in 6th gear if not shifted at the right rpm.. I wanted to experiment this out.. and its only for a week. If i feel i am over stressing the engine or anything at all, i will revert back to the original sprocket.


The rear sprocket of the FZ costed like 150 bucks, and another 60-70 bucks for fitting. a 220 bucks experiment is totally worth it IMO.

Hi Guys, wanted to know whether we can use half-clutch on the R15?? Will this affect the clutch plates in way?? The guy at the SVC told using the half clutch would screw the clutch plates. Any advice would be greatly appreciated!!

why you want to use half clutch anyways???i mean it takes fraction of a milisec to dpress clutch fully from the halfway.
if you want to shave off some milisecs from the acceleration timings use clutchless shifts instead.(above 7500RPM)

Since a number of people have queried -

- The bigger disc with caliper extension is for - 3.8 - 4k ( depending on conversion rate of the day). Shipping is around 1500 bucks. Multiple orders clubbed together can save on shipping.

- The front fork stabilizers are for - 2.9-3k ( again depending in conversion rate).
Shipping is again 1500, bulk orders save shipping.

I am planning for the disc brake and the High lift cam.

Cam around 2.5-2.7k in bulk, 3 k for individual order. shipping for 3 cams is around 1500/-.
I am planning to order one cam for my self as well.