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**satya_3d** · 03-31-2010, 09:13 PM

abhilashabhi12; hi abhi ,
pls tell me best combination of sprockets for my classic cbz, 2000 model.
currently i have stock set up, i want to increase the top end of my bike,
now i m achieving 95-100 kmph on my bike. n also i have removed tpfc cable from carb. will it affect to much while achiving top speed?

**Shreeni0403** · 04-01-2010, 11:05 AM

Originally posted by neville_kc View Post

Anyone found which rear sprocket would be compatible on the Unicorn to increase top end??

My bike's almost done 25,000kms, so I'll soon be changing the whole sprocket set ... Was thinking of the sprocket set from Karizma?? will it be a perfect fit??

ZMA's is a direct fit but that increases acceleration.

Originally posted by abhilashabhi12 View Post

Karizma's wont be a direct fit.. Instead go for Ambition's sprocket which is 15/38 or 14/38 I am not sure but its a direct fit & it will help in top end.

ZMA's is a direct fit mamu

Originally posted by neville_kc View Post

I don't wanne lose too much acceleration... so max i wanne cut down is three teeth from the rear sprocket...

14/38 is something like having 15/41 i.e cutting down 2 at rear. Don't even think of putting 15/38 if done then u r 5th gear will be useless. Just buy Ambition's full set and fit it. Cost less than 550rs. You will need extra 10links to be added to Ambition chain so 1 time u ll ve to buy Unicorn Chain as well which is around 300rs.

Originally posted by asphalt View Post

Has anybody tried to improve acceleration?
Do both of the sprockets need to be downgraded?

As Xtreme has 14/43 combination, if you want acceleration put complete set of classic CBZ i.e 14/46.

**abhilashabhi12** · 04-01-2010, 11:25 AM

Originally posted by satya_3d View Post

abhilashabhi12; hi abhi ,
pls tell me best combination of sprockets for my classic cbz, 2000 model.
currently i have stock set up, i want to increase the top end of my bike,
now i m achieving 95-100 kmph on my bike. n also i have removed tpfc cable from carb. will it affect to much while achiving top speed?

best bet to Increase top end is replacing 14t front to 15t of Achiever's - Cost 105rs sprocket & 20bucks for replacing.

Reg TPFC Cable - I am not very sure since I do not have 1st hand experience, but from what I've heard of TPFC only boost petrol intake when accelerated suddenly & does not directly or Indirectly help Top end in anyway.

I may be wrong also..

**road_ripper** · 04-01-2010, 01:33 PM

Originally posted by Shreeni0403 View Post

You will need extra 10links to be added to Ambition chain so 1 time u ll ve to buy Unicorn Chain as well which is around 300rs.

Only chain is not available anywhere, i checked at many places, we've to buy it as a complete set..
Even i wanted to reduce the rear sprocket of my 180 ug3 ie, use the discover sprocket which is a direct fit with a tooth less, but for that i'll have to buy two whole sprocket kits and choose what i need.
Is there any place in bangalore where i can find the rear sprockets alone???

**Samarth 619** · 04-01-2010, 02:49 PM

Originally posted by me is rossi View Post

top end increase chain sprocket kit for my p-200??

Your 200 has 38 teeth back there and 14 front, right?

Older 220 DTS Fi's (37 teeth) or newer 220 DTSi's rear (36 teeth) will help in overgearing the transmission. Check fitting though I'm 99% sure it fits directly.

--
@ road_ripper: Try Suzuki Zues' or TVS Fiero's 40 teeth sprocket. But, I can NOT confirm about fitting, so try it first before you buy..

**satya_3d** · 04-01-2010, 08:39 PM

Originally posted by abhilashabhi12 View Post

best bet to Increase top end is replacing 14t front to 15t of Achiever's - Cost 105rs sprocket & 20bucks for replacing.

Reg TPFC Cable - I am not very sure since I do not have 1st hand experience, but from what I've heard of TPFC only boost petrol intake when accelerated suddenly & does not directly or Indirectly help Top end in anyway.

I may be wrong also..

thanx for replying.
and what about rear sprocket?
in this thread i read that replacing rear only by 42T, will increase the top speed, and if i change front srpkt by 15T, any other changes required to rear sprocket or to chain?

__________________________________________________ _________________
almighty aerodynamist

**abhilashabhi12** · 04-02-2010, 12:04 PM

Originally posted by satya_3d View Post

thanx for replying.
and what about rear sprocket?
in this thread i read that replacing rear only by 42T, will increase the top speed, and if i change front srpkt by 15T, any other changes required to rear sprocket or to chain?

__________________________________________________ _________________
almighty aerodynamist

Thier is no need for changing rear sprocket, rear costs more so it is better to play with front which costs a mere 100bucks..

Swap over to 15t & see how is the difference ?

**satya_3d** · 04-02-2010, 05:38 PM

CBZ daddy version (classic) engine query

[QUOTE=abhilashabhi12;402927]Thier is no need for changing rear sprocket, rear costs more so it is better to play with front which costs a mere 100bucks..

thanx..
one more question i have,,
at idling speed (1200rpm) my bike makes "tuk-tuk" kind of noise, my mechanic said it's valve train chain noise, it became loose and cant be anymore fastened. so can anybody pls help and what will be the cost of chain replacement?
my bike is 10 yrs pld, i still not changed any part frm engine, i m happy with the performANCE, but m thinkin to change piston rings.
will it cause any effect on piston and cylinder, cyl head? or will it give any imrovement in performance?

__________________________________________________ _____________
Almighty aerodynamist>>

**Shreeni0403** · 04-06-2010, 08:27 PM

Originally posted by road_ripper View Post

Only chain is not available anywhere, i checked at many places, we've to buy it as a complete set..
Even i wanted to reduce the rear sprocket of my 180 ug3 ie, use the discover sprocket which is a direct fit with a tooth less, but for that i'll have to buy two whole sprocket kits and choose what i need.
Is there any place in bangalore where i can find the rear sprockets alone???

Go to any showroom (atleast Honda and Hero Honda) and ask for the respective vehicles drive chain. You will get it. But you will not get spare REAR sprocket.

**abhilashabhi12** · 04-07-2010, 11:44 AM

[QUOTE=satya_3d;403083]

Originally posted by abhilashabhi12 View Post

Thier is no need for changing rear sprocket, rear costs more so it is better to play with front which costs a mere 100bucks..

thanx..
one more question i have,,
at idling speed (1200rpm) my bike makes "tuk-tuk" kind of noise, my mechanic said it's valve train chain noise, it became loose and cant be anymore fastened. so can anybody pls help and what will be the cost of chain replacement?
my bike is 10 yrs pld, i still not changed any part frm engine, i m happy with the performANCE, but m thinkin to change piston rings.
will it cause any effect on piston and cylinder, cyl head? or will it give any imrovement in performance?

__________________________________________________ _____________
Almighty aerodynamist>>

Bro lets get in to Ownership thread.. you have more owners thier who are ready to help & this becomes OT here in this thread.

**pradyumna** · 04-13-2010, 04:12 PM

Can anyone please tell me what happens technically when we change the sprockets for more top speed to get lesser acceleration ?

**R-series** · 04-13-2010, 05:23 PM

Originally posted by pradyumna View Post

Can anyone please tell me what happens technically when we change the sprockets for more top speed to get lesser acceleration ?

to understand the effect,
try rotating a 1rupee coin (large dia) around a 50p coin(smaller dia).
then try rotating the 25p coin (smaller) 50p coin (large dia)

notice the no. of rotations both coins make around themselves inorder to cover the complete circumference of the 50p coin.

the 50p coin here is the primary and the coins out side is the secondary.

This might be confusing but honestly i wont be able to make it simpler than this.

In case of higher accelaration, consider the 1st figure (larger secondary gear-rear sporcket) and for higher topend consider the 2nd (smaller rear sprocket-more revolutions per one revolution of primary gear)

**pradyumna** · 04-13-2010, 06:01 PM

Originally posted by R-series View Post

to understand the effect,
try rotating a 1rupee coin (large dia) around a 50p coin(smaller dia).
then try rotating the 25p coin (smaller) 50p coin (large dia)

notice the no. of rotations both coins make around themselves inorder to cover the complete circumference of the 50p coin.

the 50p coin here is the primary and the coins out side is the secondary.

This might be confusing but honestly i wont be able to make it simpler than this.

In case of higher accelaration, consider the 1st figure (larger secondary gear-rear sporcket) and for higher topend consider the 2nd (smaller rear sprocket-more revolutions per one revolution of primary gear)

Thanks for the pains you took to answer my query but need a technical answer not a simple one. How torque plays its role?

**R-series** · 04-13-2010, 07:03 PM

Originally posted by pradyumna View Post

Thanks for the pains you took to answer my query but need a technical answer not a simple one. How torque plays its role?

so dumb of me to write all that, misunderstood

well torque as you would know is = force x distance (from the centre of rotation)
so for a bigger sprocket, since diameter is large when distance is large and thus torque increases as the force is still the same.
similarly for a smaller sprocket.

incase you didnt understand the point above , i'll just give you a simlar example.
lets say we're trying to open a nut that requires 20Nm of torque. with the wrench that you have its not opening (since you cant apply that much torque with it). if you simply just use a longer wrench you will be able to apply more torque and open the nut. though the force your applying will be the same but since the distance increased from the centre of rotation, it might give you the amount of torque required.

**pabi** · 04-13-2010, 07:23 PM

guys i own p150ug3, i didnot modifiy its sprocket still in stock condition. i need a sprocket settings which shld increase my top end speed. bike ticks 50 kmph @ 4krpm would be happy if it goes some where to 60kmph @ 4k rpm .changing the rear sprocket to less teeth or front to higher will do the needful? also tell me which is lesser cost.

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