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Subrosa Rose BMX Cranks - 1
Subrosa Rose BMX Cranks - 2

Subrosa Rose BMX Cranks

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About This Product: Subrosa Rose BMX Cranks

The Subrosa Rose BMX Cranks at J&R Bicycles are built tough out of specially treated alloys and smart engineering and feature an included bottom bracket. This slim design with a custom shape is constructed from 4130 chromoly that has been heat-treated post weld with the Death Proof treatment. The one-piece spindle bosses are CNC machined add even more strength and so do the oversized welds throughout. The included BB features a crush-proof steel inner spacer, 6061 aluminum caps and R12 bearings to keep your pedal action nice and smooth.

SPECIFICATIONS:

  • SIZES: 160mm, 165mm, 170mm, 175mm
  • 4130 chromoly custom shape with oversize welds
  • Post weld Death Proof heat treatment
  • 1-piece CNC spindle bosses
  • Hollow 19mm / 48 spline spindle
  • WEIGHT: 31.4 oz
  • COLORS: Black

INCLUDED BB SPECIFICATIONS:

  • 19mm mid
  • Crush proof steel inner spacer
  • 6061 Alloy Caps
  • R12 bearings
  • Weight: 7.1 oz
  • Colors: Black

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.