1-3/4" Sprocket Carrier/Brake Hub with 5/16" Threaded Holes Tools Hyper Racing # 03-040-1

Hyper Racing # 03-040-1

long and short rods and hardware

Hyper Racing # 04-772

Hyper Racing # 05-1130ATR

The bearing has a through hole for a ¼" bolt

1-3/4" Sprocket Carrier/Brake Hub with 5/16" Threaded Holes Tools Hyper Racing # 03-040-1Hyper Racing # 05 1022 Six 5 16" 18 threaded holes on a 5 1 4" bolt circle diameter. Fits 1 " splined rear axle. 5 16" sprocket bolts are recommended for your 600cc Micro Sprint. " bolts will eventually break. Drill out your sprocket bolt holes to 5 16" using a P drill bit size, . 323". This carrier has the larger 5 16" threads to help eliminate the broken " bolts that have become way too common on high horsepower engines.