Box Three Cranks Hollow-Forged Crankset



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Box Three Cranks Hollow-Forged Crankset

Order the Box Three Cranks Hollow-Forged Crankset.  The Box Three Crankset features a hollow-forged 2-piece design with an oversized bottom bracket interface. The 24mm spindle is pressed into the drive side crank arm for durability and easy installation. The non-drive side crank arm features a 2-bolt pinch system for added strength. Our unique 4-bolt 104 BCD spider features a flex-resistant ring for optimum performance.  Ride Box Components.

Box Three Cranks feature steel pedal inserts that require pedal washers and externally sealed bearing BSA bottom brackets, both provided in the box.

  • Oversized Hollow Forged Design
  • Dual pinch bolts for even clamping force
  • 4-bolt 104 BCD Spider with Flex-Resistant Ring
  • 24mm chromoly spindle
  • External BSA BB Included
170mm 175mm 177.5mm 180mm
BB (Included) BSA 1.37 BSA 1.37 BSA 1.37 BSA 1.37
Spindle 24mm Chromoly 24mm Chromoly 24mm Chromoly 24mm Chromoly
Material 6061-T6 Aluminum 6061-T6 Aluminum 6061-T6 Aluminum 6061-T6 Aluminum
Process Hollow-Forged Hollow-Forged Hollow-Forged Hollow-Forged
Chainline 44.5mm 44.5mm 44.5mm 44.5mm
Weight 1,010g/35.6oz 1,020g/35.9oz 1,020g/35.9oz 1,010g/35.6oz


  • Box Two Chainring
  • Box One Chromoly Chainring Bolts
  • Box One 7075 Alloy Chainring Bolts
  • Box Two 24mm bottom bracket
  • Box Extremum RacePrep bottom bracket

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Additional information

Weight 3 lbs
Crank Size

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