Re: World of Sprockets!

Try the 14 T front sprocket from P220 DTSi, or older model, if you're sure the chain pitch is .520 only. This model's spares would be cheaper too.

DO NOT PURCHASE DIRECTLY, first go to Bajaj SVC, try getting hold of an old front sprocket and try fitting it first... If it fits ok, purchase a new one and you're good to go.

Mostly, the service center sells a kit together and this kit (2 sprockets+chain) combined kit may get a little expensive... Maybe between Rs. 1200-1500 or so.

One way is to give the 36/37 tooth rear sprocket to someone else and share the cost... Another way is to go to a local market and ask for genuine Rolon sprocket and tell them to sell it individually.
Maybe if you offer Rs. 700 or so, they might agree to take the risk of keeping the chain and rear spr... that is, if they can sell it.

There are no adverse effects of overgearing if done properly and if the new kits fit ok.

The petrol engine is accustomed to carry loads, and in India we even overburden it and ride upwards on a slope, nothing happens.
Plus, if you ever feel a gear is too high, just shift a gear down, its the same thing technically.
Just make sure the 1st gear doesn't turn out too tall to pull in some situations. (which it shouldn't, on this setup. Read on...)

You're just doing a small change, no big deal. 45/13 is 3.461 and your new setup is 45/14 which is 3.214. Little overgeared.
No big deal, but it will be noticeable. Do let me know how it turns out.


NOTE: Skip trying for the FZ25 front, 15T would be a bit heavy unless you've modified the engine for more power...



Done bro, Thank you so much.



PLEASE NOTE ALL: FAQ post added on Page 1. Check it out...

Re: World of Sprockets!

[MENTION=11482]Samarth 619[/MENTION] Hey bro, do update the OP that it isn't advisable to use the ZMA rear sprocket on the P220 unless the owner is fine with replacing the studs(12x4) everytime the sprocket needs to be changed.

The ZMA rear sprocket is a super tight fix on the P220's hub due to smaller sprocket holes compared to stock, so over time, especially on installation and uninstallation the threads on the studs get compromised.

Just swapped back to the stock rear sprocket for some highway riding and figured things out the hard way.

Cheers, A.P.

Re: World of Sprockets!

I'm planning to get a 14 or 15 teeth front sprocket that suits the .520 chain for my RTR 200. What will be the cost? (not worth if it costs more than 500 bucks) (also I want the front sprocket only. I don't want to waste money by buying 2 sprockets and chain set)

Stock setup is 13 front, 45 rear.

Is there any adverse effect of overgearing?? (apart from a drop in acceleration)

Edit: I've found that the NS 200, RS 200, Pulsar 220 and Duke 200 (these all have the same front sprocket; may fit but will cause a speedo/odo error of about 7-8% to the lower side because the speedo/odo is linked to the engine output shaft) have 14T front sprockets and the FZ25 (won't fit – different shaft design and chain size – .428) has 15T front sprocket.

Re: World of Sprockets!

whats the stock setup ?

Re: World of Sprockets!

What is the part number of rolon chain & sprocket set for ns200 bs4? How much will it cost in kerala?

Re: World of Sprockets!

Any suggestions for discover 150s to make taller sprocket ratio ?

Re: World of Sprockets!

I would like to use powertronic too,so is the 2nd ratio better?

Re: World of Sprockets!

Front sprocket from ktm 200/duke250
Rear sprocket ,options are available for 390 at showroom itself

Re: Ktm rc390 chain sprocket upgrade

Topic Approved & merged to World of Sprockets thread.

[MENTION=99336]siddharth98[/MENTION]

Present ratio:- 45/15 = 3.

Proposed Ratio 1:- 46/14 = 3.285
Proposed Ratio 2:- 44/14 = 3.142.

Clearly, Ratio 2 has little under-gearing that's noticeable, but not much. Ratio 1 is better for a proper feel.

But, from which bike are you going to source the sprockets and chain?

Ktm rc390 chain sprocket upgrade

Hi,i want change my chain sprocket of my ktm rc390 2015
Stock is 15front 45rear
I want to increase pickup of the bike, so which one of the below choices would be better
1)14-46
2)14-44
Which will be the best,is 14-46 option becomes more powerful?

Re: World of Sprockets!

Hi,

I have been looking forward to buy one too... Can you please explain if the price you mentioned is only for the rear sprocket (as I can only see the rear sprocket in your pictures) or the entire set (Front Sprocket+Rear Sprocket+Chain)?

Re: World of Sprockets!

the ns200 was designed with triple spark and the cdi unit works in tandem with that.
from the pictures, i assume that the entire top end, block+head is from a duke 200.. so assuming it is running on just one plug, with some custom cam etc as you mentioned.
so did you make any modifications on the ignition system of the bike ?
u better take it back to the expert that did this job for you and try and figure it out.. or provide as much proper technical information you can so that someone on the internet might be able to save help you.

Re: Rear wheels sprocket HELP!!

The 3rd post of this thread shows all the previous generation bikes and their Rolon sprocket combinations. I'll highlight some of them relevant to you...

CT100 old one/ Boxer CT Ktech - 46 or 47 teeth rear sprockets depending on model year.

CT100 Deluxe (July to December 2005) - 47 teeth sprocket.


I believe these might fit your bike directly. But its better to go to an aftermarket dealer because they have more time to experiment and they might not force you to purchase the kit, if it doesn't fit. Talk about this in advance. Let me know what happened.

Re: Rear wheels sprocket HELP!!

But what are the options if I want a 46T rear sprocket??

Re: Rear wheels sprocket HELP!!

Try something from Bajaj's 100cc bikes itself. Best way to measure nutbolts on a bike itself, would be to use something like a half broken bangle (or something like pair of a scissors) and compare...
Most probably, your bike's chain pitch is .428. So, avoid 150cc+ bikes, as they have .520.

Very raely does someone try this on 100cc bikes, so not much data is available. If you do get it fit, let me know so that I'll edit the first post and everyone may use the data.