415 Lightweight Sprocket is machined not stamped  from the highest grade aerospace quality 7075-T651 aluminum and weighs (9.64 oz./274g depending on tooth count)  like the other 415 rear sprockets on the market it is the lightest machined ,this way you need not to worry about it being ” True to the alignment” of your chain and front sprocket (no wobble).

If you race Kawasaki Ninja 250,300,400 or  Yamaha R3  then you need to be on a 415 Lightweight Sprocket

This Performance mods are vital to all small bikes on the Race Track.   These 415 pitch chain kits are lighter and Narrower (don’t put a 520 on your race machine) You want less rotational weight!

These Sprocket are used  by several WSS300, BSB JuniorSS, MotoAmerica Junior Cup and  CSBK Lightweight Sportbike Champion Jake LeClair

 *** Lightest Machined Rear 415 Sprocket on the Market Made in the USA ***