51 Tooth Sprocket, 6.437" bolt pattern for 520 chainHyper Racing # 083 051 083 Series Rear Sprockets are machined from tough 7075 aluminum. These one piece sprockets have a 6 bolt pattern, a 6. 43" bolt circle diameter and fit 520 chain. Will fit Sawyer, Pace, Factor 1, Concept and Bailey Chassis.

& X7 platform except when a Jacob's Jacker is used

Hyper Racing # 06-1424Ti

Fits our 2" axle nuts which are 2-¼" hex

Hyper Racing # 03-140B

Please allow 4-8 weeks for the axle to be made and black anodized

Fits Hyper X4 and other manufacturer's Chassis

The shoulders are radiused for extra strength

The highest quality 219 Gold Chain on the market

Made in the USA

25-5044 1 Tapered Bearing

Get the original (and the best

reduced power loss