Campagnolo Bora Ultra 11s Ultra-Torque Carbon Crankset
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Campagnolo Bora Ultra 11s Ultra-Torque Carbon Crankset Info
The Campagnolo Bora Ultra 11s Ultra-Torque Carbon Crankset sits near the top of Campagnolo's road crankset hierarchy, built for riders who demand Italian craftsmanship and race-proven performance in a 2x drivetrain. It pairs a full carbon construction with Campagnolo's Ultra-Torque spindle system — an approach designed to deliver stiff, precise power transfer while keeping weight in check. This is a crankset for serious road riders who want components that keep pace with their ambitions, whether that's long mountain stages or fast-paced group rides.
The Ultra-Torque system uses a two-piece spindle design, with each crank arm integrated into half of the hollow steel axle. The two halves join at the center with a Hirth coupling — a serrated interface that Campagnolo designed to eliminate flex and maintain consistent alignment under hard efforts. The carbon arms are shaped to be laterally stiff where it matters for sprinting and climbing, while the overall design keeps rotational mass low. Available in both a 53x39 standard configuration and a 54x42 option for riders who prefer larger gearing, with crank arm lengths spanning 170mm to 175mm to suit a range of fit needs.
Campagnolo Bora Ultra 11s Ultra-Torque Specs at a Glance
- Compatibility: Campagnolo 11-speed drivetrains
- Drivetrain type: 2x road
- Spindle system: Ultra-Torque with Hirth coupling
- Crank arm material: Carbon fiber
- Chainring options: 53x39, 54x42
- Crank arm lengths: 170mm, 172.5mm, 175mm
- Spindle material: Hollow steel
Design Benefits
- Hirth Coupling Precision — The serrated Hirth joint at the spindle center is engineered to lock both crank halves into exact alignment on every installation, reducing the micro-flex that can rob power and cause premature drivetrain wear over long miles.
- Carbon Construction for Road Performance — Full carbon crank arms are shaped to prioritize lateral stiffness during out-of-saddle efforts while remaining compliant enough to handle the demands of endurance road riding — a balance that synthetic materials make possible in a way aluminum cannot.
- Gearing Versatility — The availability of both 53x39 and 54x42 chainring combinations means you can configure the crankset to match your riding terrain and cadence preferences without needing to source aftermarket rings from the start.
