Featuring beefy hollow-forged crank arms and a massive 30-millimeter Praxis™ M-30 spindle cold-forged from 7075 aluminum and precision ground to extremely tight tolerances, the Box One™ M30-M Crankset is the absolute stiffest junior BMX crankset available today. A precision CNC-machined chromoly/alloy self-extracting crank bolt system makes installation and removal a snap.
Each crankset includes a Praxis™ M30-BSA Threaded Bottom Bracket that is compatible with all European style bottom brackets. BB86 or BB30/PF30 compatible adapters can be purchased separately from Praxis™.
Praxis™ External BSA Bottom Bracket
M30 BB installation tool
BB86 frames require Praxis™ part 86-4001B
BB30/PF30 frames require Praxis™ part 68-4001R or 68-5401R
T47 frames require Praxis™ part 47-0000
Do not use pedal washers when installing pedals onto these cranks. M30-M cranks were designed to be used without pedal washers.
Material: 7075-T6 Aluminum
Length: 145, 150, or 155mm
Finish: Matte black w/ laser-etched graphics
Q Factor: 153mm
145mm: 498 grams / 17.6 ounces
150mm: 509 grams / 17.9 ounces
155mm: 518 grams / 18.3 ounces
BB only: 119 grams / 4.2 ounces