my buddy and i have 99 cbr 600's and hes looking into upgrading his sprocket.. We are booth newbies to the bike parts world. Whats the best site out to order cbr stuff is there is any? hes really looking for a front sprocket or any sprocket that will help with the torque. thanks in advanced for the help

 

I order all my stuff from Terra Powersports (http://www.terrapowersports.com). A friend has had good success with Sprocket Specialists (I think it's http://www.sprocketspecialists.com). Also, Knee Draggers has good prices (http://www.kneedraggers.com).

If your friend is looking to change out the front sprocket, he might want to look at changing the rear sprocket and chain as well. A new front sprocket will wear out faster with an old chain and rear sprocket. Typically, the chain is the most expensive part.

As for increasing "torque," a smaller (less toothed) front sprocket, or a larger (more toothed) rear sprocket is what he will want. A real general statement is one tooth down in the front is equivalent to 3 teeth up in the rear. Going down too many teeth in the front is very bad for chain life because (IIRC) the chain has to make a sharper bend.

This doesn't actually increase power output, but merely puts the bike's operating rpm, at a given speed, higher up.

 

+1 in doing the whole drive train together. You'll get even wear and its a nice excuse to upgrade to a 520.

Think about doing -1 up front and +1 or +2 in the back with a 520 chain. Its a night/day difference.

 

thanks guys