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Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black - 1
Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black - 2
Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black - 3
Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black - 4
Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black - 5

Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black

Promax
$279.95
  • 170mm
  • 175mm
Secure Checkout

About This Product: Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black

The Promax HF-3 Hollow Hot Forged 2-Piece BMX Race Crank Set-Black pairs lightweight aluminum arms with a tough 30mm chromoly spindle for extra strength. Tailored for SRAM 3-Bolt mount style chainrings (sold separately), it also allows for direct-mount sprocket compatibility. Or you can choose to use the included a 4-bolt, 104 BCD spider/adapter. The required pedal washers come also included with this crank set.

FEATURES

  • CNC machined 6061-T6 aluminum crank arms are lightweight, strong, and stiff
  • Designed and optimized for chainrings and spiders with SRAM's 3-Bolt mount style
  • Includes 4-bolt, 104 BCD spider/adapter (Not compatible with CK-1 crank spider/adapter)
  • 30mm spindle provides increased stiffness and efficient power transfer
  • Pedal washers included and required
  • Bottom bracket sold separately

SPECIFICATIONS

  • NUMBER Of CHAINRINGS: Configurable Spider
  • COLOR: Black
  • CHAINRINGS INCLUDED: No
  • PEDAL SPINDLE: 9/16"
  • CRANK LENGTH (mm): Available in 170mm, 172.5mm and 175mm
  • CRANK INTENDED USE: BMX
  • RINGS: Not Included
  • SPINDLE INTERFACE TYPE: RaceFace/Easton CINCH
  • CRANKSET STYLE: 2-Piece
  • CRANK ARM MATERIAL: Aluminum
  • DRIVETRAIN SPEEDS: Single Speed 3/32"
  • DEFINED COLOR: Black
  • CHAINRING BCD: 104, Direct Mount SRAM
  • BB INCLUDED: No

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.