Cannondale 2026 Topstone 2 2X

Explore further. Ride freer.
An amazingly capable, versatile gravel road bike. Built for chasing horizons, exploring routes less travelled or accelerating your commute.
Model Description
Two rings, endless possibilities. This Topstone is built to tackle the toughest gravel rides with Shimano GRX 400 2x10-speed shifting and a SmartForm C2 Alloy frame. With ample tire clearance and mounts for racks and gear, it's engineered to meet the demands of adventurous riders and unpredictable routes.
What it's for
Gravel-riding, exploring, bikepacking, performance commuting
Highlights
- Lightweight SmartForm C2 Alloy frame w/ full carbon fork
- Reliably precise shifting from the Shimano GRX 400, wide-range, 2x10-speed gravel drivetrain
- Powerful, controllable braking from Shimano's GRX400 hydraulic disc brakes
- Selle Royal SRX Open saddle balances supportive padding and a pressure-relieving central channel for performance comfort
Specs
Details
- Platform
Topstone Alloy
- Model Name
Topstone 2 GRX - 2x
- Model Code
C15235U
Frameset
- Frame
Topstone, lightweight SmartForm C2 Alloy, 12x142 thru-axle, tapered headtube, BSA threaded BBm flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts
- Fork
Topstone Carbon, 1-1/8" to 1.5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru-axle, fender/gear mounts
- Headset
Integrated, 1-1/8" - 1.5"
Drivetrain
- Rear Derailleur
Shimano GRX 400, Shadow RD+
- Front Derailleur
Shimano GRX 400
- Shifters
Shimano GRX 400, 10-speed
- Chain
Shimano HG54, 10-speed
- Crank
Shimano GRX 400 46/30
- Rear Cogs
Shimano HG500, 11-32, 10-speed
- Bottom Bracket
Shimano BSA 68
Brakes
- Brakes
Shimano GRX 400 hydraulic disc, 160/160mm RT30 centerlock rotors
- Brake Levers
Shimano GRX 400 hydraulic disc
Wheels
- Front Hub
Shimano TC500, 12x100mm centerlock
- Rear Hub
Shimano TC500, 12x142mm centerlock
- Rims
GXD 1.0, 28h, 23mm internal width, tubeless ready
- Spokes
Stainless Steel, 14g
- Tire Size
37
- Wheel Size
700c
- Tires
WTB Riddler TCS Light, 700x37c, tubeless ready
- Front Tire
WTB Riddler TCS Light, 700x37c, tubeless ready
- Rear Tire
WTB Riddler TCS Light, 700x37c, tubeless ready
Components
- Handlebar
Cannondale 3, butted 6061 Alloy, 16 deg flare drop
- Stem
Cannondale 3, 6061 Alloy, 31.8, 7degree
- Grips
Cannondale Knurl Cork, 2.7mm
- Saddle
Selle Royal SRX Open
- Seatpost
Cannondale 3, 6061 Alloy, 27.2x350mm
Extra
- Extra 1
Tubeless valves