The ZRACE UNCHAINED PRO is a lightweight carbon crankset option for riders looking to reduce weight and improve power transfer on a gravel or all-road build.
Built using a T800/T1000 carbon fibre composite with an internal reinforced structure, it is designed to offer a good balance of stiffness, strength and low weight. At approximately 330g ±5g for the crank arms, it is a notably light option, particularly for riders building a performance-focused bike.
This is a practical upgrade for riders who want a lighter, cleaner and more efficient drivetrain setup without overcomplicating the build.
Key Specifications
Brand: ZRACE
Model: UNCHAINED PRO
Crank Arm Length: 165mm / 170mm
Crankshaft Length: 94mm
Axle Standard: DUB 29mm
Q-Factor: 149mm
Crank Interface: EASTON direct-mount standard
Crank Arm Weight: 330g ±5g
Compatible Bottom Brackets
BB-BSA29R, BB86-29R, BB30-29R, BB386-29R, BBRight-29R, PF30-29R, ITA-29R, T47-68-29R, T47-77A-29R, T47-85.5-29R.
Chainring Options
Road setup: 53-39T / 52-36T / 50-34T
Approximate Chainring Weights
53-39T: 250g
52-36T: 230g
50-34T: 215g ±5g
The UNCHAINED PRO is best suited to riders who want a lightweight carbon crankset with a modern direct-mount design and broad bottom bracket compatibility.
Model: UNCHAINED PRO
Crank Arm Length: 165mm / 170mm
Crankshaft Length: 94mm
Axle Standard: DUB 29mm
Q-Factor: 149mm
Crank Interface: EASTON direct-mount standard
Crank Arm Weight: 330g ±5g
52-36T: 230g
50-34T: 215g ±5g