Race-Tuned for Gravel. Engineered to Haul Ass.

The 2025 Cervlo spero Rival XPLR AXS 1 in Sea Ice is a modern gravel racing machine, engineered for speed, built for versatility, and tuned for endurance. It stays true to the original speros go-fast anywhere ethos, now with subtle but significant refinementsmore compliance, better cable integration, UDH compatibility, and a threaded T47a bottom bracket for easier maintenance.

Outfitted with SRAM Rival XPLR AXS 12-speed wireless electronic shifting, carbon Reserve wheels, and Cervlos aero-optimized carbon cockpit, this spero delivers a race-level gravel build without the race-only limitations. From rowdy race days to self-supported epics, its built to go flat-outand look good doing it.

FEATURES:

Carbon Frame & Aero Fork Optimized for speed, with mud clearance and comfort dialed in.
SRAM Rival XPLR AXS 1×12 Wireless precision with gravel-specific gearing (1044T).
Reserve Carbon Wheels Wide internal width (2525.5mm) for modern tire profiles and fast rolling.
Cervlo Carbon Cockpit Aero bars, clean cable routing, and internal-ready if you want full integration.
T47a Threaded BB & UDH Compatibility Easy servicing and future drivetrain flexibility.
WTB 700x40c Tires Fast-rolling with just enough bite for race-day grip and all-surface confidence.

SPECIFICATIONS:

Frameset:

• Frame: Cervlo spero Carbon

• Fork: Cervlo All-Carbon, Tapered spero Fork

• Headset: FSA IS2, 1-1/4 x 1-1/2

• Bottom Bracket: SRAM DUB Wide, T47 BBRight

• Thru Axles: Cervlo Aero TA, 12×100 / 12×142

Drivetrain:

• Crankset: SRAM Rival, 40T, DUB Wide

• Rear Derailleur: SRAM Rival XPLR AXS, 12-Speed

• Cassette: SRAM Rival XPLR, 1044T, 12-Speed

• Chain: SRAM Rival, 12-Speed

• Shifters: SRAM Rival AXS, 12-Speed Wireless

Brakes:

• Calipers: SRAM Rival Hydraulic

• Rotors: SRAM Centerline Centerlock

Wheels & Tires:

• Front Wheel: Reserve 40, 25.5mm IW, Zipp 76 Hub, 24H, Centerlock, Tubeless Compatible

• Rear Wheel: Reserve 44, 25mm IW, Zipp 176 Hub, XDR Freehub, 24H, Centerlock, Tubeless Compatible

• Tires: WTB Vulpine TCS Light Fast Rolling, Dual DNA 700x40c

Cockpit & Contact Points:

• Handlebars: Cervlo AB09 Carbon, 31.8mm Clamp, 16 Flare

• Stem: Cervlo ST36 Alloy, with Cable Management

• Seatpost: Cervlo SP19 Carbon, 27.2mm

• Saddle: Prologo Dimension STN

• Accessories: Smartpak 400A Top Tube Storage Bag

Who Is This Bike For?

Gravel Racers Who Want Wireless Simplicity SRAM XPLR AXS brings 1x efficiency and modern gearing.
Riders Who Train Hard & Ride Everywhere Race-ready, but also comfortable for 6+ hour epics.
Future-Proof Buyers Threaded BB, UDH, and integrated-ready frame means it’s built to evolve with you.
Style-Conscious Speedsters That Sea Ice paint hits hard

The spero Rival XPLR AXS 1 is for those who ride like they mean itbecause on this bike, fun and fast are one and the same.