Cannondale Topstone CAAD 1 GRX 1x: Ready to Explore

The Cannondale Topstone CAAD 1 GRX 1x is a versatile gravel bike designed for riders who want to switch between paved roads, dirt tracks and adventures away from the beaten path. Its aluminium frame combines Cannondale’s expertise in metalworking with geometry engineered to deliver stability, responsiveness and an enjoyable ride across a variety of terrains.

SmartForm C1 Frame and Full Carbon Fork

The SmartForm C1 aluminium frame offers a balance of low weight, durability and precision. Its clean lines and internal cable routing contribute to a refined appearance, while the full carbon fork promotes precise handling and helps improve front-end comfort. The OutFront geometry, featuring a 55 mm fork offset, combines high-speed stability with manoeuvrability on tighter sections.

Shimano GRX 12-Speed Drivetrain

The Shimano GRX 1x drivetrain is designed to tackle gravel routes with simplicity and efficiency. The 40-tooth chainring works with the 12-speed Shimano SLX 10–51 cassette, providing a wide range of gears for climbs, flat roads and long distances. The Shimano GRX 822 rear derailleur completes a system designed to support both sporty rides and adventurous exploration.

Reliable Braking and Tubeless-Ready Wheels

The Shimano GRX 410 hydraulic disc brakes, paired with 160 mm rotors, deliver controlled and reliable braking. The wheels feature WTB ST i25 TCS rims, which are tubeless-ready, and are fitted with 700 × 45c WTB Vulpine TCS Light tyres. This setup is designed to combine low rolling resistance, grip and comfort on both paved and unpaved surfaces.

Versatility for Every Adventure

The Topstone CAAD 1 GRX 1x features multiple mounting points for water bottles and accessories, as well as mudguard mounts and a dropper seatpost-compatible design. The carbon fork incorporates mounts for water bottles and accessories, along with internal routing for the brake and dynamo cables.

From weekend gravel rides to everyday commuting, this Cannondale is ready to accompany you with a reliable, practical setup suited to a wide range of uses.

Technical Specifications

Frame and Fork

• Frame: Topstone CAAD, SmartForm C1 aluminium, 12 × 142 mm thru-axle, tapered head tube, 68 mm threaded BSA bottom bracket, Flat Mount disc brakes, StraightShot internal cable routing, compatible with a 27.2 mm dropper seatpost, UDH, multiple accessory and water bottle mounts.
• Fork: Topstone, full carbon, 1-1/8" to 1.5" steerer, 55 mm OutFront offset, Flat Mount disc brake, internal routing for brake and dynamo cables, 12 × 100 mm thru-axle, triple mounts for water bottles and accessories, mudguard mounts.
• Headset: Acros IS52/40 ICR.

Drivetrain

• Rear derailleur: Shimano GRX 822, Shadow SGS, 12-speed.
• Shifters: Shimano GRX 610, 12-speed.
• Chain: Shimano M7100, 12-speed.
• Crankset: Shimano GRX 610, 40 teeth, 165 mm (47 cm), 170 mm (51 cm), 172.5 mm (54–56 cm), 175 mm (58–61 cm).
• Cassette: Shimano SLX M7100, 10–51 teeth, 12-speed.
• Bottom bracket: Shimano BSA 68.

Brakes

• Brakes: Shimano GRX 410 hydraulic disc brakes, RT70 Center Lock rotors, 160/160 mm.
• Brake levers: Shimano GRX 410 hydraulic disc brake levers.

Wheels

• Hubs: Shimano TC500, Center Lock, front 12 × 100 mm, rear 12 × 142 mm.
• Rims: WTB ST i25 TCS, 28 holes, tubeless-ready.
• Spokes: Stainless steel, 14G.
• Tyres: WTB Vulpine TCS Light, 700 × 45c, tubeless-ready.

Components

• Handlebar: Cannondale 3, butted 6061 aluminium, 16° flare, 120 mm drop: 400 mm (47–51 cm), 420 mm (54–58 cm), 440 mm (61 cm).
• Handlebar tape: Cannondale KnurlCork, 2.7 mm.
• Stem: Cannondale C1 Conceal, aluminium, 31.8 mm diameter, -6° angle: 70 mm (47–51 cm), 80 mm (54 cm), 90 mm (56–58 cm), 100 mm (61 cm).
• Saddle: Selle Royal SRX Open, 148 mm.
• Seatpost: Cannondale 3, 6061 aluminium, 27.2 × 350 mm.
• Included accessories: Tubeless valves.