Corima WS1 47mm Track Clincher Wheel Rear

Built for the laps that come before race day, the Corima WS1 47mm Track Clincher Wheel Rear is a dedicated training wheel from a brand with a long track record on the velodrome. Corima has spent years working with the French Cycling Federation to support French track athletes, and the WS1 range channels that track-specific know-how into a wheel built for the volume and repetition of daily training rather than a single race effort.

Corima developed the WS1 line specifically to meet the needs of track riders logging serious training hours, and the 47mm depth sits deliberately in the middle of the brand's track lineup — deep enough to offer a real aerodynamic benefit on the boards, but not so deep that it becomes unwieldy or overly specialized for day-to-day sessions. The rim is 26mm wide and built with a 3K carbon weave, a construction that prioritizes durability and consistent stiffness over shaving every possible gram, which matters more on a wheel that's going to see hundreds of training laps than it would on a wheel built for one race.

This is the rear wheel specifically, sold separately from the front, and it's built around a standard track hub rather than a road hub — a solid axle setup designed to run a fixed cog directly, with no freehub or cassette involved. That's consistent with how a track bike works: no coasting, no gear changes, just a direct connection between the pedals and the rear wheel. The wheel laces with 24 spokes, a count built to handle the repeated, consistent loads of fixed-gear track riding rather than the varied stresses of road use.

One functional note worth calling out directly: this wheel is built for tires with inner tubes only. Tubeless conversion kits are not compatible with this rim, so riders should plan on running standard track clincher tires with tubes rather than trying to set it up tubeless. For a training wheel that's likely to see tire changes and repairs more often than a race-day wheel, that's a reasonable tradeoff — tube-and-tire setups are simpler to service trackside than a tubeless system, and there's no ambiguity about compatibility to work around.

The WS1 47mm Rear comes in white and is priced as an individual wheel rather than part of a set, which fits how track riders often buy — pairing a rear wheel with whatever front wheel matches their training needs, rather than being locked into a matched set. For a track cyclist who wants a genuine carbon training wheel from a brand built on velodrome performance, without paying for race-day tubular construction they don't need for everyday laps, the WS1 47mm Rear is a straightforward, purpose-built choice.