Tire Size
28mm Optimized
Spokes That Redefine Lightweight and Strength
The Bay Area in California is well known for its successful start-ups and top notch innovation. That’s why we partnered with ARRIS, located in Berkley, CA, to help us create the lightest and strongest spokes in the industry without sacrificing a single watt. The Roval Aero Composite Spokes by Arris are 20% stronger than the steel alternative, saving 1.9g per spoke, resulting in a 103.5g lighter system weight—just from the spokes.
Measure and quantify, it’s what we do. That said, it’s undeniable that the feeling of these speedy, super light wheels is just buttery. Smooth, responsive, and quiet thanks to the intentionally created synergy of the rim and hub with the innovative composite spokes.
Lighter and 5 Seconds Faster
At Specialized, advanced simulations drive our design process, ensuring every product delivers real‑world speed, comfort, and control. During development of the Alpinist CLX III, R&D Engineer Marcel Keyser ran advanced dynamic simulations replicating real-world race conditions, factoring in everything from elevation and slope changes on the Tourmalet to rider power, system weight, aerodynamics, rolling resistance, and drive chain efficiency.
When we simulated Demi’s climb up the Tourmalet, the data was clear: the Alpinist CLX III delivered a 5-second advantage over its predecessor on her effort. Because when every watt matters, we leave nothing to chance.
Alpinist Rim: The Classic That Cuts No Corners.
The Alpinist CLX III utilizes a hooked rim (allowing for real-world riding pressures up to 110psi, if that’s your thing) helping secure tire bead retention and an easier set up and mounting experience than ever before. All in a wheel that almost doubles current industry impact standards while managing to achieve the lightest weight possible.
Note, this is a pair of wheels and will be supplied as two part numbers, being;
1x 30026-6011 - Front Wheel
1x 30026-6012 - Rear Wheel
Rims
- Wheel Size / ETRTO
- 622 × 21 (700c)
- Tubeless Compatibility
- Yes
- Insert Compatibility
- Yes
- Brake Compatibility
- Disc (Centerlock)
- Rim Construction
- Carbon Clincher Hooked
- Valve Stem Length
- Roval Tubeless Vlave, Alloy 50mm
- Hole Count
- Front: 21H, Rear: 24H
- Rear Rim
- Alpinist CLX III Carbon Clincher, 700c (CR2475)
- Rear Rim Dimensions
- Depth: 33mm, External Width (at widest point): 26.5mm, Internal Width: 21mm, Bead Hook Width: 2.75mm
- Front Rim
- Alpinist CLX III Carbon Clincher, 700c (CR2474)
- Front Rim Dimensions
- Depth: 33mm, External Width (at widest point): 26.5mm, Internal Width: 21mm, Bead Hook Width: 2.75mm
Hubs
- Rear Hub
- Roval Low Flange Road Hub, Center Lock, 12x142mm, (LF19-R)
- Rear Freehub Body
- DT Swiss Ratchet EXP (36T ): Sram XD-R
- Rear Hub Bearing
- DT Sinc Ceramic Bearings - DS:1526 (15 x 26 x 7 mm), NDS: 6802 (15 x 24 x 5 mm)
- Front Hub
- Roval Low Flange Road Hub, Center Lock, 12x100mm, 19mm OD End Caps Installed (LF21-F)
- Front Hub Bearing
- DT Sinc Ceramic Bearings - DS: 6802 (15 x 24 x 5 mm), NDS: 6802 (15 x 24 x 5 mm)
Spokes & nipples
- Nipples
- Arris MK4 Spoke Nipple Alloy, 6 mm
- Rear Spokes
- Roval by Arris, Composite Aero Spoke with Ti End Pieces: T-head, 24qty, (DS: 292mm, NDS: 288mm)
- Rear Lacing Pattern
- One-Cross / Three-Cross (2:1), Not Tucked
- Front Spokes
- Roval by Arris, Composite Aero Spoke with Ti End Pieces: T-head, 21qty, (DS: 281mm, NDS: 294mm)
- Front Lacing Pattern
- Two-Cross / Radial (2:1), Not Tucked
Tire info
- Tubeless Tape Width
- 25mm
- Tire Type
- Clincher Tubeless and Clincher Tube Type
- Design Tire
- RapidAir TLR, 28mm
- Approved Tire Widths
- 24mm-38mm
- Max Pressure
- Tubeless (110psi) Tubed (130psi), 36mm-38mm: Tubeless (60psi) Tubed (60psi)
Weight
- Wheelset Weight
- 1,131g (with valves and tape)
- Rear Weight
- 613g (with valves and tape)
- Front Weight
- 518g (with valves and tape)
General
- Warranty
- Limited Lifetime Warranty
- Assembly Method
- Hand Built
- Weight Limit
- 275 lbs. / 125 kg.
- Certifications
- ISO 5775-2, UCI Approved
- E-bike Approved
- No
- Extras
- 4 Extra Spokes and Nipples, Roval Wheel Bag, Shimano HG 11/12-Spd. Road Freehub & end Caps (rear wheel only)