Campagnolo Record X 13 WRL 1X Crank Arm Set

The Campagnolo Record X 13 WRL 1X Crank Arm Set is the carbon crank arm platform for Campagnolo's 1x Record X drivetrain, built to pair with a separate single chainring for gravel and 1x road setups. The exposed carbon fiber arms carry the Record X branding and Campagnolo's Ultra-Torque axle system, using a steel ASTM2 spindle sized specifically to fit modern gravel and 1x frames, with a Q-factor of 152mm and a 47.5mm chainline.

Campagnolo backs the arms with its QCK-Tech bottom bracket and low-friction bearings, protected by a dual sealing system: an inner seal guards the bearings themselves, while a patented outer seal sits between the spindle and bearings to keep mud and dust from working their way in on rough terrain. The arm set is available in 165mm, 170mm, and 172.5mm lengths to match different rider proportions, and it is built to accept Campagnolo's wide range of Record X chainring options, from 38T up to 52T, so you can dial in gearing for anything from loaded adventure riding to fast gravel racing. Paired with the 13-speed X cassette (10-48T) or the Super Record X cassette, it forms the core of a fully modular 1x drivetrain.