All details on availability & size
recommendation are below the spec section.
Discover new adventures. Discover freedom.
An amazingly capable and versatile gravel bike. Built for chasing horizons, exploring routes less traveled, or making your daily commute even quicker.
Model Description
Simplicity meets boundless possibility. This Topstone is a versatile gravel grinder featuring Shimano’s new CUES U6000 1x11 drivetrain and a durable SmartForm C2 alloy frame. With multiple gear mounts and room for big tires, it’s ready for gravel riding, bikepacking, or back-road exploring. Confidence, capability, and a whole lot of fun.
What it’s for
Gravel riding, exploring, bikepacking, performance commuting
Key Features
- Lightweight SmartForm C2 alloy frame with full carbon fork
- Durable, reliable, wide-range 1x11 shifting from Shimano’s new CUES U6000 group
- Powerful, controllable braking from Shimano CUES hydraulic disc brakes
- Proven all-around performance from WTB Riddler TCS Light tubeless-ready tires, 700x37c
- Selle Royal SRX Open saddle combines supportive padding with a pressure-relieving central channel for performance comfort
Specifications
Frameset
| Frame: | Topstone SmartForm C2 Alloy, 12x142 thru-axle, tapered head tube, BSA threaded BB, flat mount disc, StraightShot internal routing, multiple gear/bottle mounts |
|---|---|
| Fork: | Topstone Carbon, 1-1/8"–1.5" steerer, 55 mm OutFront offset, flat mount disc, internal routing, 12x100 thru-axle, triple gear/bottle mounts, fender mounts |
| Headset: | Integrated, 1-1/8" – 1.5" |
Drivetrain & Brakes
| Shift Levers: | Shimano CUES U6030, 11-speed |
|---|---|
| Rear Derailleur: | Shimano CUES U6000 GS |
| Crankset: | Shimano CUES, 40 teeth |
| Bottom Bracket: | Shimano BSA 68 |
| Chain: | Shimano LG500 Linkglide, 11-speed |
| Cassette: | Shimano CUES LG400, 11-50, 11-speed |
| Brakes: | Shimano CUES 6030 hydraulic disc, 180/160 mm RT30 rotors |
| Brake Levers: | Shimano CUES U6030 |
Wheels
| Front Hub: | Shimano TC500, 12x100 mm thru axle, Centerlock |
|---|---|
| Rear Hub: | Shimano TC500, 12x142 mmthru axle, Centerlock |
| Rims: | GXD 1.0, 28h, 23 mm internal width, tubeless ready |
| Tires: | WTB Riddler TCS Light, 700x37c, tubeless ready |
Components
| Handlebar: | Cannondale 3, 6061 Alloy, 16° flare — 400 mm (XS), 420 mm (SM–MD), 440 mm (LG–XL) |
|---|---|
| Stem: | Cannondale 3, 6061 Alloy, 31.8, 7° — 80 mm (XS), 90 mm (SM–MD), 100 mm (LG–XL) |
| Tape: | Cannondale KnurlCork, 2.7 mm |
| Saddle: | Selle Royal SRX Open |
| Seatpost: | Cannondale 3, 6061 Alloy, 27.2x350 mm |
| Extras: | Tubeless valves |
Availability & Size Recommendation
XS
January 2026*
147 cm
165 cm
147 – 165 cm
SM
January 2026*
160 cm
175 cm
160 – 175 cm
MD
in stock
170 cm
185 cm
170 – 185 cm
LG
February 2026*
177 cm
193 cm
177 – 193 cm
XL
January 2026*
190 cm
203 cm
190 – 203 cm
*pre-order
Note: size ranges can overlap — rider preference decides. We’re happy to help.
| Model year | 2025 |
| Intended use | Gravel |
| Wheel size | 28" |
| Frame material | Aluminum |
| Shifting type | Derailleur |
| Gears | 11 |
