Ritchey WCS Zeta GX Disc Gravel Wheelset Tubeless Ready 12x100 / 12x142 mm Gravel / Cyclocross

Although the GX wheels are the latest addition to the Zeta line, they represent, in some ways, the culmination of 50 years of development. Back in the early 1970s, Tom Ritchey and his mentor Jobst Brandt were already blazing trails. Off-road riding is literally in Tom's blood.

RELIABLE PERFORMANCE. With its focus on gravel riding, the WCS Zeta GX wheelset represents a return to the roots, enhanced and optimized by decades of innovation and inspired by the reliability and top performance of the original Zeta model. Durability and the confidence to not only master the harsh conditions of remote terrain but also get the rider home safely are inherent in all Ritchey components and were a central element in the design of the Zeta GX.

HANDCRAFTED PRECISION. To excel on gravel, the handcrafted wheels are not only tubeless ready but also feature optimized WCS hubs with sealed bearings. The rear hub also features a precise 36-tooth Ratchet Driver System with a 10° engagement angle.

OFF-ROAD DESIGN. At 25 mm, the rim flange spacing is wide enough to accommodate larger off-road tires. To handle any gravel adventure, 28 sturdy DT Swiss Competition spokes front and rear perform their duties, while the rim's OCR (Off Center Rim) design balances spoke tension to further increase wheel stiffness.

Technical details of the Ritchey WCS Zeta GX wheelset

OCR rims:

Material: aluminum 6066
Type: Clincher, Tubeless compatible
Design: OCR (Off Center Rim)
Wheel size: 28 inches (700C)
Outer width: 29 mm / Inner width: 25 mm / Profile height: 19 mm
Recommended tire width: 30-50 mm

Disc hubs:

Material: aluminum (forged)
Brake disc mount: Centerlock
Freehub body: Ratchet Driver (aluminum, 36 engagement points)
Bearing: sealed
Installation dimensions: 12 x 100 mm / 12 x 142 mm (thru axle)

Spokes & nipples:

Spokes: DT Swiss Competition (double butted / 2.0 - 1.8 - 2.0 mm)
Number of spokes: 28 (front / rear)
Spoke pattern: double crossed
Nipple: Brass (2.0 x 12 mm)

Weight (manufacturer information):

approx. 1840 g (wheelset)

Scope of delivery: front wheel + rear wheel, including tubeless rim tape