Fits SDG hubs only
Most pit bikes have SDG hubs, ie M2R, Made-2-Race, Stomp, Demon, etc
Sprocket width is 6mm = 420 Pitch
Available with 35 / 36 / 37 / 38 / 39 / 40 / 41 teeth
The bigger the rear sprocket, the faster in each gear the bike will go.
The smaller the rear sprocket less start acceleration you'll have.
As used by many pit bikers that race bikes
Made in the UK
TALON PITBIKE REAR SPROCKETS 420 PITCH SDG FITMENT
Best to use Zinc Counter Sunk bolts to secure these Sprockets on and use Lock Thread to help eliminate and possibilities of the bolts vibrating loose.