USD $‎399.99

Box Two M30-P Crankset

  • • Oversized Technology™ Hollow Forged Design
  • • Oversized 30mm Alloy Spindle
  • • Self-Extracting Crank Bolt System
  • • 4-bolt 104 BCD Spider with Flex-Resistant Ring
  • • External BSA 30mm BB Included

    BB (Included)BSA 30mm 1.37BSA 30mm 1.37BSA 30mm 1.37BSA 30mm 1.37
    Spindle30mm Alloy30mm Alloy30mm Alloy30mm Alloy
    Material7075 T-6 Aluminum7075 T-6 Aluminum7075 T-6 Aluminum7075 T-6 Aluminum
    Q Factor163mm163mm163mm163mm
    Weight890 grams / 31.5 ounces906 grams / 32.0 ounces920 grams / 32.5 ounces924 grams / 32.6 ounces
    SKU: BX-CK1630
    Featuring oversized 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, Box Two™ M30-P cranks fit frames with European bottom brackets, paired with the same oversized, hollow-forged arms and 104 BCD spider with a flex-resistant ring 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. The Box Two™ M30-P cranks proved to be stiffer than anything on the market, being second only to its Box One™ M35 big brother.

    Each crankset includes a Praxis™ M30-BSA Threaded Bottom Bracket that is compatible with all BSA European style bottom brackets. For frames with BB86 or BB30/PF30 bottom bracket shells, compatible adapters can be purchased separately from Praxis ™.

  • • Box Two Chainring
  • • Box One Chromoly Chainring Bolts
  • • Box One 7075 Alloy Chainring Bolts
  • • Box Two Oversized bottom bracket M30
  • Installation


    No. These cranks are designed to not use pedal washers. Installing pedal washers can damage the crank as the pedal will not be threaded in sufficiently.

    Can I use axle or bottom bracket spacers with these cranks?

    The cranks are designed to specifically for 68mm wide BMX bottom bracket shells and require no spacers. Spacers may be required if your frame has a bottom bracket shell that is less than 68mm wide.

    No. A chainring can only be installed to the rear of the spider.

    No. A loose pedal will damage the crank and can cause injury. Always ensure that your pedals are tightened correctly.

  • BB86 frames require Praxis™ part 86-4001B
  • BB30/PF30 frames require Praxis™ part 68-4001Ror 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.
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