Box Two M30-P Crankset

MSRP: USD $‎399.99

USD $‎399.99
SKU: BX-CK1630
MSRP: USD $‎399.99

USD $‎399.99

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Box Two M30-P cranks have a super-stiff, cold-forged, 30-millimeter, 7075 aluminum alloy, Praxis™ M30 spindle that fits frames with European bottom brackets, paired with the same oversized, hollow-forged arms and 104 BCD spider as our Box One™ M35 cranks. An independent test lab compared a wide range of cranks to both the Box One™ M35 and Box Two™ M30-P cranks. Both systems proved to be stiffer than anything on the market, with the M35's coming in at about 10 percent stronger than the M30-P's.

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™.

  • 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-P cranks were designed to be used without pedal washers.
Material7075-T6 Aluminum
Length172.5, 175, 177.5 or 180mm
FinishMatte black w/ laser-etched graphics
Q Factor163mm


  • Praxis™ External BSA Bottom Bracket
  • M30 BB Installation Tool


  • 172.5mm: 753 grams / 26.6 ounces
  • 175mm: 755 grams / 26.6 ounces
  • 177.5mm: 768 grams / 27.1 ounces
  • 180mm: 771 grams / 27.2 ounces
  • BB only: 115 grams / 4.1 ounces