Machined from a solid block of 7050-T7451 aerospace aluminum, Stone crankarms eliminate pedaling flex and excess material found on entry-level SRAM setups. Their 29mm DUB spindle and 8-bolt direct mount interface integrate seamlessly into your Road and Gravel XPLR builds.
Stone 29mm DUB 8-Bolt Aluminum Crankarms (Road / Gravel)
Machined from a solid block of 7050-T7451 aluminum, Stone crankarms eliminate flex under heavy loads while keeping weight down to 483.9 g in 155 mm. They offer a direct technical alternative to entry-level SRAM cranksets for all your Road, Allroad, and Gravel XPLR builds. Their 29mm DUB spindle and 8-bolt direct mount interface allow immediate installation of SRAM AXS chainrings, spiders, and power meters.
Key Features
Aleris aerospace aluminum: Fully CNC machined from 7050-T7451 aluminum supplied by aerospace producer Aleris (Airbus, Boeing) to ensure maximum structural strength with zero flex under load.
Ultra-precise 29mm DUB spindle: CNC machined with spindle roundness tolerances below 0.01 mm to eliminate friction noises and protect bottom bracket bearings.
SRAM 8-Bolt mount: Direct Mount interface compatible with 1x and 2x chainrings, spiders, and power meters from SRAM RED, Force, and Rival AXS groupsets.
Compatibility
Compatible with standard 29mm DUB bottom brackets and Road or Gravel bike frames. The 8-bolt direct mount interface accommodates SRAM RED, Force, and Rival AXS chainrings, spiders, and power meters.
Not compatible with 24mm Shimano Hollowtech II bottom brackets, 3-bolt direct mount chainrings, or MTB T-TYPE setups. Supplied with a 120 mm spindle, a 3 mm spacer, 8 mounting bolts, and 2 pedal washers. Unsure about your bottom bracket or chainline? Write to us.
