While the first iteration of CLX wheels were clearly fast, they lacked the durability to be safely used with tubeless tire systems. The CLX II wheelsets now feature increased durability while remaining light and stiff. In recent years, road tubeless technology has advanced rapidly. With the ability to run lower pressures, tubeless tires offer a smoother ride which leads to faster speeds – especially when riding over subpair road surfaces.

Specialized estimates that the average rolling resistance reduction from using tubeless is 8%. On a road bike at 25 miles per hour, that’s around 3.5 watts saved. To top it off, a tubeless system with sealant will essentially repair itself. Small punctures often seal so quickly that the rider doesn’t even notice anything was wrong.

To create a stronger wheel—rather than alter their already optimized shape and profile—Roval further refined the carbon layup and materials of the CLX II wheelsets. The result is a durable wheel with top specs for speed and handling. Roval put it to the test and found that the latest CLX wheels can survive a 60 Joule impact without damage (UCI tests for rim impact top out at 40 Joules). This is excellent for safety and provides riders with confidence that their gear will perform when put to the test.

Designed for aerodynamics and handling, the Rapide CLX II wheelset features individually crafted front and rear rim profiles, which Roval claims increases stability in crosswinds by up to 25%. These wheels are ready for all-out racing with a system weight of 1520g along with deep aero rims (51mm front, 60mm rear). Tying it all together, wind-defying AeroFlange hubs with ceramic SINC bearings and DT Swiss EXP internals balance weight savings and durability.

A pure climbing wheelset that still performs like an all-rounder, the Alpinist CLX II weighs in at only 1265g for the set. With 33mm rims and LFD hubs, Roval carves out grams whenever possible – making the Alpinist CLX II a gravity defying miracle. Lightweight but durable, this wheelset is perfect for big days in the mountains or that elusive KOM/QOM attempt.