Aspero-5 GRX RX825 Di2 1x

The all-new Áspero-5 was built for the front end of the race, and is the most aerodynamic gravel bike ever created. Cervélo has long been synonymous with aerodynamic performance, and we’ve brought that 30 years of expertise to gravel racing. The new bike is a stunning 37 Watts faster than the outgoing model, and 34 Watts faster than its nearest competitor.

With clearance for 45mm tires, downtube storage, and a threaded bottom bracket, Áspero-5 is ready to race the second it rolls off the shop floor. It made its rainbow-jersey debut (and won!) under UCI Gravel World Champion Marianne Vos, and will be campaigned by some of the most elite bike racers in the world.

Features

• SHAPE OF SPEED: Áspero-5 is 37 Watts faster than its predecessor, and 34 Watts faster than the nearest competitor. Cervélo has long led the industry in aerodynamics, and we’ve delivered a gravel race bike worthy of that reputation. The aero handlebar and stem are responsible for nearly 6 Watts of that savings on their own.
• WEIGHT: The new Áspero-5 is 66 grams lighter than its predecessor, despite adding a significant amount of surface area to improve aerodynamic performance.
• MIXED & MATCHED TIRE GEO: When fitted with equally-sized tires (e.g. 42mm front and rear), Áspero-5’s handling is stable, confidence-inspiring, and ready for the roughest courses. To increase aerodynamics even further, and sharpen handling for less-technical courses, we optimized the geo for a 4mm tire width differential (e.g. 40mm front, 44mm rear).
• DOWNTUBE STORAGE: First seen on the P-Series triathlon bike, we’ve implemented our industry-leading downtube storage door on the Áspero-5. It’s the lightest and most aerodynamically efficient system on the market, and puts a tube, tools, and a flat kit inside the frame and out of the wind.

Specifications

Fork	Cervélo All-Carbon, Tapered Aspero-5 Fork
Handlebar	Cervélo HB16 Carbon, 31.8mm clamp
Handlebar Sizing	48: 38cm · 51: 38cm · 54: 40cm · 56: 40cm · 58: 42cm · 61: 42cm
Stem	Cervélo ST31 Carbon
Stem Sizing	48: 70mm · 51: 80mm · 54: 90mm · 56: 90mm · 58: 100mm · 61: 100mm
Seatpost	Cervélo SP27 Carbon
Seatpost Offset	48–58: 0mm · 61: 15mm
Saddle	Prologo Nago R4 PAS Tirox
Bottom Bracket	CeramicSpeed SL, T47 BBright (24mm spindle)
Headset	FSA IS2 1-1/4" (45°×45°) / 1-1/2" (36°×45°)
Front Thru-Axle	Cervélo Aero Thru Axle, M12×1.5, 122mm
Rear Thru-Axle	Cervélo Aero Thru Axle, M12×1.0, 169mm
Front Wheel	Reserve 40TA GR, DT Swiss 350, 12×100mm, 24H, Centerlock, Tubeless
Rear Wheel	Reserve 44TA GR, DT Swiss 350, 12×142mm, MS freehub, 24H, Centerlock, Tubeless
Tires	Vittoria Corsa Pro Control TLR G2.0, 700×42c
Shifter / Brake Levers	Shimano GRX RX825 (Di2)
Crankset	Shimano GRX RX820
Chainring	Wolf Tooth Components Aero 48T Chainring for GRX
Power Meter	4iiii Precision GEN3+ (Single-Sided)
Crank Lengths	48–51: 170mm · 54–56: 170mm · 58–61: 172.5mm
Chain	Shimano M8100
Cassette	Shimano XTR M9200, 10-51T, 12-speed
Rear Derailleur	Shimano GRX RX827 SGS
Brake Rotors	Shimano CL800 Centerlock
Accessories	Cervélo front & rear mounts, in-frame storage rolls (tube + flat kit), Smartpak top-tube bag, 2× Arundel Mandible cages
Max Tire Width (Actual)	45mm