Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black Size:175mm This formula has been refined

This formula has been refined and improved since the late 90's

Seat Tube: 9

5" Clamp: 31

inner tie-down straps

PTFE coating

Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black Size:175mm This formula has been refinedThe Promax HF 3 Hollow Hot Forged 2 Piece BMX Race Crank Set Black pairs lightweight aluminum arms with a tough 30mm alloy spindle for extra strength. Tailored for SRAM 3 Bolt mount style chainrings (sold separately), it also allows for direct mount sprocket compatibility. Or you can choose to use the included a 4 bolt, 104 BCD spider adapter. The required pedal washers come also included with this crank set. FEATURES CNC machined 6061 T6 aluminum