700c, 27-Inch & 650c

Made with ultralight composite rims, this pro-level aero WheelSystem is unbeatable whether you’re sprinting for the podium or alone against the clock. The SLR 1 55 blends proven aero performance with maximum transmission stiffness and superior braking control in a value-oriented package. Features - Ultralight 55mm deep full-composite rim brake only rims - Tubeless compatible using supplied rim strips and valves - 17mm internal rim width for optimal tire performance - Dynamic Balance Lacing technology for enhanced drive efficiency and braking control - Sapim straight-pull bladed stainless spokes- 16H Front & 21H Rear - Alloy locking nipples - Giant alloy hub shell with pawl based driver system - 1670g per pair

Tom Ritchey believes in high-quality aluminum road wheels. They offer incredible performance and durability that's hard to beat at any price. He redesigned the critically acclaimed Zeta to be wider, lighter, and laterally stiffer—perfect for a great road riding experience, yet still tough enough to endure gravel road rides and cyclocross races that would chew lesser wheels to pieces. Combining decades of historic, ride-proven research and testing with modern standards, the Zeta is now available in a tubeless-ready Comp-level version, offering the legendary Ritchey ride quality at a more attainable price. - Rims: 6061 alloy Tubeless Ready - Rim depth: 28mm - Outer rim width: 23mm - Inner rim width: 17mm - Hubs: loose ball bearing - Freehub material: steel - Compatibility: Shimano 9/10/11s - Disc brake compatibility: No - Axle compatibility: quick release - Axle style: quick release - Spokes: DT Champion 2.0—straight - Front: 20 spokes / radial lacing - Rear: 24 spokes / 2x lacing - Nipples: 2.0 brass 12mm - Weight: 1.946g (set) - Do not use sealants containing ammonia

The CADEX 36 Disc WheelSystem is a versatile, lightweight composite wheel built for real-world performance. Featuring a hookless rim design with optimal 22.4mm internal width and 36mm depth, it delivers unbeatable acceleration and climbing efficiency as well as confident handling on descents, in the wind and on varied terrain. - Precision reinforced lay-up places carbon fiber only where needed, creating a strong, stiff rim structure weighing in at only 1302 grams. - Dynamic Balanced Lacing technology produces a stiffer, more efficient wheel with outstanding power transfer. - High tensile strength CADEX aero carbon spokes minimize lateral flex for more efficient acceleration and climbing. - The 22.4mm inner rim width creates an increased actual tire contact patch for better traction and impact absorption, better handling, more confidence and less rider fatigue. - CADEX hookless rim technology features a broad inner rim width and durable continuous carbon fiber structure, helping create a rounder tire shape for superior grip and handling plus added sidewall support when cornering, all without compromising weight. - The precision machined low-friction R1-C30 hub significantly reduces bearing load as CADEX ceramic bearings further increase efficiency by offering lower rolling resistance and 1.5x smoother action than steel. - A low 36mm rim profile offers excellent stability in shifting winds.