415 Lightweight Rear Drive Sprocket
415 Rear Sprocket is Machined not Stamped from the highest grade aerospace quality 7075-T651 aluminum and weighs (9.64 oz./274g depending on tooth count)
Spears Racing 415 Lightweight Sprocket is engineered to withstand the constant abuse given to an aluminum rear sprocket, machined from the highest grade aerospace quality 7075-T651 aluminum and weighs (9.64 oz./274g depending on tooth count) not like the other 415 rear sprockets on the market it is machined and it is not stamped.
Being that it is machined you need not to worry about it being ” True to the alignment” of your chain and front sprocket (no wobble).
These sprockets have been on championship winning teams,Ben and Jake LcClair 2018 and 2019 CSBK Lightweight Sportbike Champions. Eunan McGlinchey 2018 BSB Junior Supersport Champion with Team#109 and Several of the MotoAmerica Junior Cup race teams run the Spears Racing sprockets as well.
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