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Kink Brace 3-Piece BMX Crankset - 1
Kink Brace 3-Piece BMX Crankset - 2
Kink Brace 3-Piece BMX Crankset - 3

Kink Brace 3-Piece BMX Crankset

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About This Product: Kink Brace 3-Piece BMX Crankset

The Kink Brace 3-Piece BMX Crankset at J&R Bicycles takes classic dependable design and gives it an upgrade with modern elements for even better performance. Made with 100% chromoly steel, the tapered oval tubing is super strong and stiff and the spindle bosses have a larger radius to protect your ankles a bit. These cranks also feature custom spindle bolts that are compatible with both 3/8" ratchets and 6mm Allen keys.


  • Length: 160mm, 165mm, 170mm and 175mm
  • Spindle Size: 22mm Hollow
  • Spindle Type: 48-Spline
  • Drive Side: RHD/LHD Compatible
  • Bolts: 3/8" Ratchet and 6mm Allen Key
  • Tubing: 100% 4130 Chromoly Steel
  • Heat Treatment: TruTherm Post Weld Heat Treated
  • Weight: 33.5oz (175mm)

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.