• 415 Lightweight Sprocket
  • Affinity Sports Academy

415 Lightweight Rear Drive Sprocket

(1 customer review)
5.00 out of 5 based on 1 customer rating

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


 *** Lightest Machined Rear 415 Sprocket on the Market***

                                            ***Made in the USA ***

Weight .5 lbs
Sprocket Size

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

1 review for 415 Lightweight Rear Drive Sprocket

  1. Anthony Maloof (verified owner)

    This is a simple cheap and damn effective modification to make to the R3, and with it my lap times dropped over a second.
    I used the 18 tooth front and picked up different rear sprockets. It is a must have

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