Yamaha Rear Sprockets Sprocket Size:56 QX-ring which is 40% less

QX-ring which is 40% less friction compared to an O-ring chain

What this means is that your chain will fit the sprocket better and everything will last longer

* No color options are available at this time

Every MVXZ2 chain features EK's Quadra-X Ring design

The Superlite RS7 Series rear sprocket is the #1 selling steel racing sprocket on the market today

Yamaha Rear Sprockets Sprocket Size:56 QX-ring which is 40% lessAll ProSeries Sprockets are Made in the USA from the harder grade 7075 T6 certified aero space industry aluminum for long life and light weight. They are machined to exact specs with tolerances much more stringent than other aluminum sprockets and many times tighter than OE sprockets. What this means is that your chain will fit the sprocket better and everything will last longer. Additionally, they are chemically etched to give them a uniform, even