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 ***
45t, 46t, 47t, 48t, 49t, 50t, 51t, 52t, 53t, 54t, 55t, 56t, 57t, 58t, 59t, 60t