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Eclat Onyx 3-Piece BMX Cranks - 1
Eclat Onyx 3-Piece BMX Cranks - 2

Eclat Onyx 3-Piece BMX Cranks

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About This Product: Eclat Onyx 3-Piece BMX Cranks

With an oversized super-hollow 24mm spindle, the Eclat Onyx 3-Piece BMX Cranks are the cranks of choice for Eclat Pro Rider Devon Smillie. Built from heat-treated 4130 Chromoly, these super strong cranks can be setup for either Left- or Right-hand drive, and the investment casted pedals and spindle boss can stand up to the stress and torque of the most demanding riders out there today.

Compatible with 24mm spline drive and bolt drive sprockets.


  • Tubular Heat-treated 4130 cro-mo arms & axle
  • 24mm cro-mo ultra hollow axle
  • RSD or LSD compatible
  • Weight: 833g

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.