Roval Alpinist CLX III – The lightest and fastest carbon wheels ever
The fastest way to reach the top
The Roval Alpinist CLX III represent the pinnacle of Specialized technology: ultralight, responsive road wheels designed for epic climbs and race performance. With a total weight of only 1,131 g, these carbon wheels are 134 g lighter than the previous model, offering a real advantage on every ascent.
Made in collaboration with Arris, they integrate aerodynamic composite spokes, 20% stronger than steel, saving 103.5 grams per wheel system. The combination of lightness, stiffness, and strength allows an explosive response to every acceleration — the ideal choice for those aiming for the polka dot jersey or their new personal record.
Strengths
Ideal use: road races and climbs
Total weight: 1,131 g (with tape and valves)
Hubs: internal components DT Swiss 180 EXP, 36 teeth
Spokes: aerodynamic composite Roval Aero by Arris, +20% strength compared to steel
Number of spokes: 18 front / 24 rear
Recommended tires: 28 mm
Complete technical specifications
Rims
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Front model: Alpinist CLX III Carbon Clincher, 700c (CR2474)
Depth: 33 mm
External width: 26.5 mm
Internal width: 21 mm
Bead Hook Width: 2.75 mm
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Rear model: Alpinist CLX III Carbon Clincher, 700c (CR2475)
Depth: 33 mm
External width: 26.5 mm
Internal width: 21 mm
Bead Hook Width: 2.75 mm
Rim construction: Carbon Clincher Hooked
Wheel size / ETRTO: 622 × 21 (700c)
Holes: 21H front / 24H rear
Tubeless compatibility: Yes
Insert compatibility: Yes
Brakes: Disc (Centerlock)
Valve: Roval Tubeless Valve alloy 50 mm
Hubs
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Front: Roval Low Flange Road Hub, Center Lock, 12x100 mm, 19 mm OD End Caps (LF21-F)
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Rear: Roval Low Flange Road Hub, Center Lock, 12x142 mm (LF19-R)
Bearings: DT Sinc Ceramic – DS: 1526 (15x26x7 mm), NDS: 6802 (15x24x5 mm)
Freehub body: DT Swiss Ratchet EXP (36T), compatible with Sram XD-R
Spokes and Nipples
Front spokes: Roval by Arris, aerodynamic composite with titanium ends (T-head), 21 pcs – DS: 281 mm / NDS: 294 mm
Rear spokes: Roval by Arris, aerodynamic composite with titanium ends (T-head), 24 pcs – DS: 292 mm / NDS: 288 mm
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Spoke pattern:
Nipples: Arris MK4 Spoke Nipple Alloy, 6 mm
Tires
Approved width: 24 mm – 38 mm
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Maximum pressure:
Tubeless: 110 psi
Tubular: 130 psi
Tires 36–38 mm: 60 psi
Tire type: Clincher Tubeless & Clincher Tube Type
Tubeless tape width: 25 mm
Recommended tire: RapidAir TLR, 28 mm
Weight
Additional details
Included accessories: 4 extra spokes and nipples, Roval Wheel Bag, Shimano HG 11/12v freehub body + end caps (rear wheel only)
E-bike compatibility: No
Certifications: ISO 5775-2, UCI Approved
Rider weight limit: 125 kg (275 lbs)
Assembly: Hand built (assemblate a mano)
Warranty: Limited Lifetime Warranty