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Comp Zeta Disc Wheels

Cassette Body


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 Disc is now available in a tubeless-ready Comp-level version, offering the legendary Ritchey ride quality at a more attainable price. Each Zeta wheelset is hand-built by a qualified wheel technician. OCR® rims design (Off Center Rim) reduces wheel dish to balance spoke tension for a stronger, stiffer wheel.

Tech Specs

Rimsalloy Tubeless Ready - OCR 3mm offset
Rim diameter700c
Rim depth23.4mm
Outer rim width24.4 mm
Inner rim width19.5mm
Suggested tire size range25-40mm
Hubsforged disc thru-axle hubs and sealed bearings 
Hub spacing100x12mm front / 142x12mm rear
Axle Compatibilitythru-axle (12mm) - standard quick release (conversion kits available separately)
Freewheelpatented 6-pawl, 12-point micro-clutch engagement system
Freehub materialalloy
Freehub optionsShimano / SRAM XD-Road
CompatibilityShimano 9/10/11-speed and 12-speed road cassette - SRAM XD/XDR (freehub conversion kits available separately)
Disc brake compatibility6-bolts
SpokesDT Champion 2.0 straight / black
Front24 spokes / 12x283mm / 12x285mm / 2x lacing
Rear24 spokes / 12x283mm / 12x285mm / 2x lacing
Nipples2.0 brass 12mm / black
Do not use sealants containing ammonia

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