Our site shows LIVE INVENTORY. If you can ADD TO CART, the item is IN STOCK.

Profile Column Spline-Drive Crank Kit - 1
Profile Column Spline-Drive Crank Kit - 2

Profile Column Spline-Drive Crank Kit

Sold Out

About This Product: Profile Column Spline-Drive Crank Kit

The Profile Column Spline Drive BMX crank kit features a 22mm hollow heat-treated spindle, 4130 chromoly arms, flush mount spindle bolts and Spline-Drive (no gear bolt) design. Use any 22mm Spline Drive sprocket with the Profile Column Spline Drive cranks.


  • SIZES: Available in sizes 160mm, 165mm, 170mm, 175mm and 180mm
  • FINISH: Available in Black or Chrome
  • SPINDLE FIT: 22mm, 48 splined, included
  • BOTTOM BRACKET: Requires 22mm Mid, Spanish, Euro or American depending on your frame, not included
  • CHAIN RING: Sprockets down to 22T, not included
  • PEDAL FIT: 9/16" (standard for 3pc cranks)
  • INCLUDES: Both right and left crank arms, spindle, flush mount bolts and installation tools.
  • WEIGHT: 29.9ozs/847.65g (without bottom bracket)

Please note: Profile Logos and Arm Length Indicators are no longer stamped on arms. All markings are laser etched and/or printed.

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.