CannondaleGravel · carbon with rear suspension

Cannondale Topstone Carbon 3 GRX 1x

Carbon gravel bike with KingPin rear suspension, 12-speed Shimano GRX with a 40-tooth chainring, StashPort and room for 52 mm tyres.

Tyres
45 mm (max. 52 mm)

Spec sheet

Frame
Carbon, with KingPin rear suspension (up to 30 mm of travel) and Proportional Response construction
Fork
Carbon, 12x100 mm thru-axle, 55 mm offset
Drivetrain
12-speed Shimano GRX with a single chainring: GRX 822 derailleur, GRX 610 shifters, GRX 610 crankset with 40 T chainring and SLX M7100 10-51 T cassette
Brakes
Shimano GRX 610 hydraulic disc, RT70 160 mm rotors
Wheels
WTB ST i25 TCS tubeless-ready rims with Shimano TC500 Center Lock hubs
Tyres
WTB Riddler TCS Light 45 mm; maximum 52 mm with a single chainring (45 mm with two); the fork takes up to 56 mm
Handlebar
Cannondale 3 with 16° flare and Cannondale C1 Conceal stem
Seatpost and saddle
Cannondale 3, 27.2 mm, ready for an internal dropper post; Selle Royal SRX Open saddle
Mounts
Several points on the frame and three bottle or cargo mounts on the fork; removable mudguard
Storage
StashPort in the down tube, reachable under the bottle cage, with a large StashBag included
Sizes
47 to 61 cm; the full chart is not in the sheet
Weight
Not stated in the official sheet

What it is like

Official photos of this model on the website of Cannondale.
See official photos on the website of Cannondale

The Topstone Carbon is Cannondale’s carbon gravel bike and this version 3 has a 12-speed Shimano GRX groupset with a single 40-tooth chainring, like the Canyon Grizl CF 7 ESC, and a very wide 10-51 cassette.

It differs from the Grizl in one important detail: the KingPin rear suspension, a pivot at the seat tube that gives up to 30 mm of travel to smooth out rough terrain. In return it keeps what matters for travel: a StashPort compartment under the down-tube bottle cage with its bag, mounts on frame and fork, and room for tyres up to 52 mm with a single chainring.

A higher version of the family, the Topstone Carbon 4, appears among the Badlands 2025 bikes according to bikepacking.com. The data are from Cannondale’s official sheet checked on 13 November 2026 (MY25 model); the Spanish website shows neither price nor weight, so we leave them blank until confirmed. The link goes to the manufacturer’s website and is not an affiliate link.