Promax SQ-1 Square Taper JIS Crank Arms (Blue) (145mm)

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Price: $65.00


  • 135mm
  • 140mm
  • 145mm
  • 150mm
  • 155mm
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The SQ-1 cranks arms have a traditional, five-arm, 110-bolt pattern spider and come in a variety of lengths to fit most riders or riding situations, from the 5-and-under BMX racer to the 6-foot tall fixie-riding hipster.

  • 110mm BCD
  • Compatible with any JIS square-taper bottom bracket
  • Cold-forged from 6061-T6 aluminum for strength, low weight and durability and feature beautiful anodized finishes
  • Bottom bracket sold separately
  • Chainline with 113 Bottom Bracket: 42.3
  • Q-Factor with 113 BB: 151.1
Crank Length: 
135mm to 170mm 
Chainring BCD: 110 
Bottom Bracket Style: Square Taper JIS
Crank Style: 3 Piece 
Drive Side Compatibility: Right Hand Drive 
Bottom Bracket Included: No 
Weight 135mm: 501 g / 17.67ounces
Weight 140mm: 503 g / 17.74ounces
Weight 145mm: 516 g / 18.20 ounces
Weight 150mm: 524 g / 18.48 ounces
Weight 155mm: 531 g / 18.73 ounces
Weight 160mm: 538 g / 18.97 ounces
Weight 165mm: 556 g / 19.61 ounces
Weight 170mm: 558 g / 19.69 ounces

This product was added to our catalog on July 20, 2020

Verified Owner
Wednesday, Oct 14 2020 (about a year ago)
Promax SQ-1 Square Taper JIS Crank Arms (Blue) (165mm)
Quality of material seems good. This set won't fit on a GT Mach One Expert without changes. The arms are too fat and it hits the chainstays. I'll either have to return this or take the grinder to it. Or get a different bottom bracket.