STYLE EXTENDED 110.21 202025-02 This housing holds the standard 90mm bearing, it has a 1.0" length offset and works with SBC or BBC applications.

STYLE SMALL PULLEY 92.32 202025-05 This housing holds the 80mm bearing and works with most applications. NOTE: the smallest crank pulley that can be used with this housing is 50 tooth 8mm.

STYLE STANDARD 76.47 202025-01 This housing holds the standard 90mm bearing and works with most applications. NOTE: the smallest crank pulley that can be used with this housing is 54 tooth 8mm.