DH9 Crank Arms

Praxis 9 DH MTB Crankset

The Praxis 9 crankset is purpose-built for gravity riders and long-travel downhill bikes. Forged from reinforced alloy with an M30 spindle, this crankset offers maximum strength, reliability, and performance for aggressive riding. Its 3-bolt direct mount interface allows quick ring swaps and compatibility with any brand of 3-bolt chainring.

Gravity Focus

• Designed specifically for downhill and long-travel MTB use

• Forged high-grade alloy with reinforced cross sections for toughness

• Supports installation in 83mm BSA, PF41x104.5, and PF41x107 DH frames using Praxis M30 bottom brackets

Specifications

• Crank Length: 165mm

• Material: Reinforced forged alloy arms, M30 alloy spindle (30mm drive / 28mm non-drive)

• Weight: 650g (165mm armset)

• Direct Mount Interface: 3-Bolt; compatible with Shimano and SRAM chainrings

• Chainline:

  • 57mm CL → 3mm offset ring

  • 60mm CL → 0mm offset ring

• Q-Factor: 186mm

• Main Bolt: 8mm alloy M30 crank bolt for installation/self-extraction

• Bottom Bracket Required: M30 (compatible with 83mm BSA, PF104.5, PF107)

Important Notes

• Suitable for gravity-focused MTB riders seeking a durable, versatile crankset for long-travel DH bikes

• Any 3-bolt DM chainring can be used; chainline depends on ring offset

• Installation limited to 83mm BSA, PF104.5, and PF107 frames only

The Praxis 9 combines strength, precision, and versatility, making it ideal for serious downhill and enduro riders.