Gearing RMZ 450 2014

Supersprox sprockets with an RK520MXU chain. They last and last.

I've had good luck with the Renthal R1 race chain and also their sprockets. For a short track, you might want to consider +1 or +2 teeth on the rear sprocket. Usually no size change to the drive sprocket.

If you want more durability and longer-lasting, go with an O-Ring chain and a steel sprocket.

I'm running a RK GB520MXZ4 and Talon Sprockets...lasts long enough and isn't to expensive.

i tried a lot of different gearing combinations and like the 14/49 ratio best. Even for tighter tracks, the bike is always in the right rpm range and pulls really great.
with the stock 13/50 ratio i was always between two gears, but now this problem is gone.

renthal sprockets, 13/50 or 51 did ert2 chain.