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Wheels Cyclocross / Gravel Wheels

Ritchey WCS Zeta GX 650b Disc Wheelset

Ritchey believes in high quality aluminum road and gravel wheels because they offer a balance of performance and durability that's hard to beat at any price. Finishing an epic ride or event matters! The critically acclaimed Zeta aluminum wheel concept is completely redesigned in this GX Disc 650b model to be wider and laterally stiffer at a reasonable weight, and more tough enough to endure gravel road rides and cyclocross races that would chew lesser wheels to pieces. The disc-only OCR (off center spoke hole alignment) 19mm profile rim extrusion with clincher and Tubeless Ready tire capability. The 28 hole, modern wide rims with an internal rim width of 25mm and external width of 29mm capably carry tires from 32mm-67mm in width, with the ideal range from 35-52mm with most tubeless tire models.

This dedicated disc brake version is built around two-piece forged WCS-level hubs, with machined and staggered hub flanges that increase the spoke bracing angle and builds a stronger, lighter wheel. The hubs spec thru-axle bodies, alloy axles, sealed bearings and the Center Lock rotor interface. The engagement system for the rear wheel is a 36° ratchet design with an alloy freehub body. Each Ritchey wheelset is hand-built by a qualified Ritchey wheel technician and the Zeta GX Disc features 28 j-bend, double butted spokes, laced 2x/2x front and rear with brass nipples for more strength and accessible emergency needs, while the rear hub is easily serviceable without tools, including cassette body removal.

Features

  • Everyday-equipped 650b alloy wheelset for gravel allroad, cross and light-load adventure riding
  • Each Ritchey wheelset is hand-built by a qualified Ritchey wheel technician
  • Proven strong and resilient rims made with a proprietary Ritchey extrusion
  • Rim specs: 6066 Alloy TLR 650b | OCR offset | Depth 19mm | IRW 25mm, ERW 29mm, 28h
  • Suggested tire size range: 32-67mm
  • Do not use sealants containing ammonia
  • Hubs feature forged disc thru-axle bodies, alloy axles, sealed bearings; Center Lock rotor interface (lockrings not included)
  • Engagement: ratchet type, 36°, w/alloy freehub body
  • Rear hub easily serviceable without tools, including cassette body removal
  • Axle compatibility: thru-axle (12-15mm) - standard quick release (conversion kits available separately)
  • Spokes & Lacing,(FT/RR): 28 j-bend steel DT Competition 2.0/1.8 double butted, black | 2x/2x lacing, 2.0 brass black nipples
  • Includes: tubeless tape and valves
  • Freehub notes: Shimano 11/12r | SRAM XDR (can use XD mountain cassettes with 1.85mm spacer) | Campagnolo N3W for 10-13 speed
  • Hub axle/spacing set-up: 12/100mm front | 12/142mm rear
  • Wheel size: 700c
  • Freehub options: Shimano, SRAM XDR, Campagnolo N3W
  • Color: Black
  • Weight: 1740 grams (set, with tubeless tape installed)