The Fastest Way to the Top Roval Alpinist CLX III Engineered for polka dot jersey contenders and riders who enjoy fast climbs, the Roval Alpinist CLX III is our lightest road wheelset yet at 1,131g, shedding 134g from its predecessor. A new lightweight hub and Roval Aero Composite Spokes by ARRIS save 103.5g, while being 20% stronger than steel. And the proof is in the performance, helping Demi climb the Tourmalet 5 seconds faster than she ever has. At a Glance Use Road Racing & Climbing Weight 1,131g (with valves and tape) Hub & Engagement DT Swiss 180 EXP internals, 36T Roval Composite Spokes by ARRIS 20% stronger than steel, saves 103.5g system weight Spoke Count 18F / 24R Tire Size 28mm Optimized