Robert Axle Project 12mm Thru Axle for Trainer Sale This versatile helmet boasts the

This versatile helmet boasts the same "All-Rounder" ethos and slim profile of XR Spherical and features Mips® Evolve for impact protection in certain crashes

Easy fastening of tires

Boasting a host of performance features

20-29" wheels (20-24" accessory insert sold separately) with tires wide as 5" (3-5" accessory wheel basket sold separately)

Subtle design that wraps around your handlebar

Robert Axle Project 12mm Thru Axle for Trainer Sale This versatile helmet boasts theDesigned to adapt your thru axle equipped bike with your wheel on trainer, such as a 1up, Blackburn, Cyclops, Kinetic, Tacx, Wahoo and many other trainers. Train, warm up and be race ready and fit for the season. Cervelo owners with RAT thru axles: This axle will replace the RAT axle found on all of their RAT equipped bikes. In addition to this axle you will need to replace the RAT compatible derailleur hanger with Cervelo threaded hanger Part Code: