Jt sprockets are fine.

If you want stock sizes, get new set of OEM sprockets and the chain of your choice.

 

I went with the Factory Yamaha front and a Supersprox on the rear and the EK 3D black/gold chain .. If you go to Hardracing for the Supersprox they can get you any size and most any color or stick with their default color of gold center...

 

JT sprockets are fine, I've always gotten good mileage out of them. My Sunstar sprockets worked fine too but didnt last quite as long as JT. DID chains are good too, I've also gotten great service out of Regina chains and often at a discount compared to the more popular ( in the USA) DID chains.

 

Highly recommend Supersprox like Abe mentioned. Specifically, their Stealth line. Steel teeth on an aluminum inner carrier, so you get the strength and longevity of a steel sprocket with most of the weight savings of an aluminum sprocket.


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I went with the $50 Superlite steel
http://sprocketcenter.com/street-sprocket-applications/yamaha/fj-09-2015-2016/525-sprockets-stock-pitch/superlite-rs7-series-black-525-pitch-steel-rear-sprocket-yamaha.html

and a stock ($28) rubber damped countershaft sprocket. Those bare steel sprockets are too noisy for me.

 

As street bikes go, when the chain is worn out it is well past time for a new bike, get rid of it and get a new bike, problem solved. You're welcome.

 

wow, I don't really reply to stuff just lurk around and dig up info, and I know this is old, but... wow. rich kid much?

 

motorcycles are not disposable

 

more like, smartarse much?

 

Obviously you haven't enjoyed his wit and sarcasm yet...lighten up!

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