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Crupi Expert Crankset-Black

Crupi
$189.95
  • 170mm
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About This Product: Crupi Expert Crankset-Black

The Crupi Expert Cranks-Black at J&R Bicycles use high-quality materials and advanced engineering to deliver a lightweight yet strong BMX race crank. Built from forged 6061-T6 aluminum alloy, the Expert Race Cranks feature steel pedal inserts for added strength and well as an integrated 104BCD 4-bolt spider for use with a 4-bolt gear. For even more weight savings and durability, this crank is made with a hollow chromoly steel spindle integrated into the drive-side arm. Included pedal washers are to be used at all times and the recommended rider weight limit for the Crupi Expert Race Cranks is 165 lb.

SPECIFICATIONS

  • Steel pedal inserts for strength
  • Pedal washers (included) must be used at all times!
  • Hollow 24mm 10-Spline chromoly spindle is permanently pressed into the drive-side arm
  • Built in 104BCD 4-Bolt spider
  • Note: Recommended 165lb Rider Weight Limit
  • Bottom Bracket sold separately
  • Available in silver or black in sizes 152mm - 170mm
  • Weight = 23oz (160mm)
  • Tighten Spindle Bolt to 2-2.5Nm
  • Tighten Pinch Bolts to 12-14Nm

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.