Tom Ritchey believes in high-quality aluminum racing bikes – they offer incredible performance and durability that is hard to beat. He has revised the critically acclaimed Zeta to make it wider, lighter, and laterally stiffer – perfect for a great ride feel on the road, yet robust enough to withstand gravel road rides and cyclocross races. By combining decades of research and testing with modern standards, the Zeta Disc is now also available in a tubeless version at a competitive level, providing the legendary Ritchey ride quality at an affordable price. Each Zeta wheelset is handcrafted by a qualified wheel technician. The OCR rim design (Off Center Rim) reduces the wheel dish to balance spoke tension and achieve a more stable, stiffer wheel.

• Axle system: HR 12x142 mm
• Axle standard: Thru-axle
• Intended use: Road bike
Front hub
• Axle diameter front: 12 mm
• Number of spokes: 24
• Type: Aluminum
• Hub width: 10 mm
• Material: Aluminum

Rear hub
• Hub width: 142 mm
• Axle diameter rear: 12 mm
• Freehub body: SRAM XDR, 9/10/11-speed
• Material: Aluminum
• Number of spokes: 24

Rims
• Design: Hollow chamber
• Profile height: low (< 30 mm)
• Height: 23.4
• Brake system: Disc brake
• Inner width: 19.5 mm
• Width: 24.4 mm
• Tire type: Wire bead/Clincher
• Material: Aluminum
• Size (in inches): 28 inches

Spokes
• Lacing: DT Swiss 2.0, double crossed

Front wheel
• Designed for brake type: 6-bolt disc brake
• Weight: 795 g

Rear wheel
• Weight: 955 g
• Designed for brake type: 6-bolt disc brake

Wheelset
• Total weight: 1750 g

Main information
• Version: Set.