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Box Five Square Taper Cold-Forged Crankset-Black - 1
Box Five Square Taper Cold-Forged Crankset-Black - 2

Box Five Square Taper Cold-Forged Crankset-Black

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About This Product: Box Five Square Taper Cold-Forged Crankset-Black

The Box Five Square Taper Cold-Forged Crankset-Black are a JIS square taper standard and compatible with BSA European square taper bottom brackets. Available in sizes 135mm to 170mm, each size is proportionally tapered. Box doesn’t just crop off a few milimeters from the ends of the 170mm and call it a 160mm. Cold-forged for strength and durability.

FEATURES

  • Oversized Bottom Bracket Interface
  • Durable Cold-Forged Construction
  • JIS Square Taper Design
  • Top-Load Clamp Design
  • 5 Bolt 110 BCD

COMPATIBILITY

  • Box One Bottom Bracket Square-Taper Titanium/Carbon
  • Box Two Bottom Bracket Square-Taper Chromoly
  • Box Three Square Taper Steel Bottom Bracket
  • Box One Chromoly Chainring Bolts
  • Box One 7075 Alloy Chainring Bolts

SPECIFICATIONS

  • Sizes Available: 135mm-155mm
  • Spindle: JIS
  • Material: 6061-T6 Aluminum
  • Process: Cold-Forged
  • Chainline: 44.5mm
  • Weight: 480g/16.93oz, 480g/16.9oz, 490g/17.28oz, 520g/18.34oz, 520g/18.34oz

Crank Size Chart

Crank Size Chart
Inseam length Crank Length
Crank Size: Micro, Mini. Junior
Inseam length: 15 - 16 inch Crank length: 130 mm
Inseam length: 16 - 17.5 inch Crank length: 135 mm
Inseam length: 17.5 - 19 inch Crank length: 140 mm
Inseam length: 19 - 20 inch Crank length: 145 mm
Inseam length: 20 - 22 inch Crank length: 150 mm
Crank Size: Junior, Expert, Expert XL
Inseam length: 20 - 22 inch Crank length: 150 mm
Inseam length: 22 - 23 inch Crank length: 155 mm
Inseam length: 23 - 25 inch Crank length: 160 mm
Inseam length: 25 - 26 inch Crank length: 165 mm
Crank Size: Pro and Larger
Inseam length: 26 - 27 inch Crank length: 170 mm
Inseam length: 27 - 28 inch Crank length: 175 mm
Inseam length: 28 - 30 inch Crank length: 177.5 mm
Inseam length: 30 - 31 inch Crank length: 180 mm
Inseam length: 31 - 32 inch Crank length: 185 mm
Inseam length: 33+ inch Crank length: 190 mm

How To Measure Your Inseam

  1. Start with a pair of pants you already have that fit you well and lay them flat on the floor.
  2. Carefully measure the length from the crotch seam to the bottom of the leg.
  3. THIS NUMBER IS YOUR INSEAM. Use this number to help you choose your cranks.