First of all,thanks for your help

That was an easy calculation,the lower the ratio,the greater top end and lesser acceleration.

But I was looking for some more insight,maybe I need to provide more info,

Top Speed on Stock settings (13/44)= 111 kmph.
Peak Power @ 8500 rpms = 14.2PS
Peak Torque @8250 rpms = 11.4Nm

Revised specs after modifications,
Peak Power @ 8500 rpms = 16PS
Peak Torque@ 8250 rpms = probably around 12.5Nm

Hence with two different Final drives by how much would the Top End increase on the new and stock specs ????

with 13/42 you can reach around 117kmph. with 14/44 you can get 120-121kmph

is it within the stock power band or the revised one ???

these top speed are with the stock power band

Guys can anybody help me out here ?

Which one for p200

hello all,
i want to change my p200 sprocket and its has t38.
so now for top end and quick accelaration which ones i have to use t37 of 220
my main concern is not to give any pain to my bike's engine.
so should go for t38 one or i can go for t37 or for accel. i can go for t40 of karizama without effect on engine on high or low rev.
so please tell me which one i have to go for.

^^The P220 Fi sprocket (37T) would increase your TOP SPEED and the Karizma sprocket (40T) would increase your ACCELERATION.

1 less teeth would not effect the engine much but the zma sprocket will definately effect the engine, but it might not damage.

thanks abhayshanu
can u please tell me how is the mileage will increase by reducing one or increasing one teeth.

I want to ask question to all xbhpians that what is the best size for pulsar200.

bro read the first post to get some deep idea about sprocketing . imho the best set for your 200 is the stock one provided that your's is not a modified (read tuned engine) steed, simply over/undergearing is not that worth in a street bike .

If you reduce teeth in rear sprocket (overgear), you will get slightly better highway mileage.
The story might be different in the city though (from my personal experience).

Suppose on a stock bike, you get 50 kmph @ 3000 rpm (in 5th) then if you overgear you might remain at 50 kmph at lower rpms, say 2700 rpm...
That means on a highway, you will travel longer for less rpms and for lesser fuel.

For your P200, you can get the older P220's setup (14/37) for slight overgearing.

I think you need to get the whole kit of the Karizma's chain sprocket. Actual steps may vary a bit from what I remember from my P180 experience.

You'll have to loosen the swingarm nut bolts, which connect the rear wheel axle on both sides. Move the wheel forward so that the chain gets loose. Then, you'll be able to remove the wheel itself alongwith the sprocket. The wheel will also have a part having greasy coloured connectors, about 6 of them. Don't touch them. The sprocket will have four nut-bolts, replace the sprocket and put the wheel back but ensure all those connectors are in place. Adjust the wheel according to the chain play. Chain play should be 35-40mm on the bottom side... Tight it again, but be very very sure of correct wheel balance on both sides...

Or you can go to a good mechanic, and its no big deal for him, believe me.


@ MACH50: Judging the exact top speed is not possible with the power specs alone.
It depends on power/ torque it makes BEYOND 8500 rpm, the air fuel ratio, the weight/ load/ stress, the environment (humidity), etc.
So, with 16 PS it might make 114 or 118 or 123, depending on a lot of other factors than just gearing.

By the way, which is this machine you're referring to, which has peak torque so high up @ 8250 rpm? That's one peaky machine!

If you dont mind samrath, burning, its damn easy. The kit costs like 900 or so. Buy it, the front sprocket wont fit easily, so let that be inside. The rear sprocket fits and you will have to use a karizma chain as the 220 chain is to short. Then just attach the axil again. Its just like a normal change of sprocket + chain, no hassles.
But I doubt you are experienced, so do not try it at home, just go to your trusted mech.

I will like to share my experience with altering sprockets of my Zma.

Currently I am using
13 tooth front sprocket (ZMA stock)
37 tooth rear sprocket (P220 carb)
O-Ring chain with some extra links (P220 carb)

After changing the sprockets I went for a ride to coorg and I was cruising around 90s all over the trip.The bike gave a FE of 38 which is preety good as it was giving only 35 earlier (on trips).It touched a top speed of 130 in speedo with the pillion and saddle(I have K&N installed).Thats the specs on trips/highways .

One strange thing I should mention, the bike refused to cross 80 in 5th gear in higher altitude. Each time I had to shift down, speed up and again put 5th for a constant speed .

On city, It feels little sluggish than earlier.
I didn't get any improvements in FE but my average riding speed increased to 70 from 60. The reason is... the engine feels less stressed and it touches 75 in 4k rpm in 5th gear.

So I am overall happy with the results, I have the O-Ring with the chain cover intact so not much issues with maintaining it.

Two things :-

1. The P220 Carb has a 36T Rear sprocket, the P220 Fi has a 37T Rear Sprocket.

2. The altitude at Coorg is not high enough to justify as the cause of power loss. Its not that high.

I have the P220 carb sprocket..must be 36T then
I second that...I have gone to coorg before and never faced any issues.
And this time it wasn't exactly feeling like lack of power, it just refused to speed up beyond 80 in 5th gear (with pillion in Kushalnagar-madikeri and madikeri-talkaveri road).
It was like...One gear down->accelerate->100+->put 5th-> cruise in d same 100+