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
Simplicity meets boundless possibility. This Topstone is a versatile gravel grinder with new Shimano CUES U6000 1×11-speed shifting and a durable SmartForm C2 Alloy frame. With multiple gear mounts and room for big tires, it’s ready for gravel-riding, bikepacking or backroad exploring. Confidence, capability, and a whole lot of fun.
What it’s for
Gravel-riding, exploring, bikepacking, performance commuting
Highlights
- Lightweight SmartForm C2 Alloy frame w/ full carbon fork
- Durable, reliable, wide-range, 1×11-speed shifting from Shimano’s new CUES U6000 group
- Powerful, controllable braking from Shimano’s CUES hydraulic disc brakes
- Proven all-around performance from WTB Riddler TCS Light, 700x37c, tubeless ready tires
- Selle Royal SRX Open saddle balances supportive padding and a pressure-relieving central channel for performance comfort
Details
- Platform: Topstone Alloy
- Model Name: Topstone 2 CUES – 1x
- Model Code: C15205U
Frameset
- Frame: Lightweight SmartForm C2 Alloy, $12 imes 142ext{mm}$ thru-axle, tapered headtube, BSA threaded BB, flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts.
- Fork: Topstone Carbon, $1ext{-}1/8″$ to $1.5″$ steerer, 55mm OutFront offset, flat mount disc, internal routing, $12 imes 100ext{mm}$ thru-axle, triple bottle/gear mounts, fender mounts.
- Headset: Integrated, $1ext{-}1/8″ ext{ to } 1.5″$.
Drivetrain
- Rear Derailleur: Shimano CUES U6000 GS.
- Shifters: Shimano CUES U6030, 11-speed.
- Crank: Shimano CUES, 40T.
- Rear Cogs: Shimano CUES LG400, 11-50, 11-speed (Linkglide).
- Chain: Shimano LG500 Linkglide, 11-speed.
- Bottom Bracket: Shimano BSA 68.
Brakes
- Brakes: Shimano CUES 6030 hydraulic disc.
- Rotors: 180mm (Front) / 160mm (Rear) RT30 centerlock.
- Brake Levers: Shimano CUES U6030 hydraulic disc.
Wheels & Tires
- Rims: GXD 1.0, 28h, 23mm internal width, tubeless ready.
- Tires: WTB Riddler TCS Light, $700 imes 37ext{c}$, tubeless ready.
- Hubs: (F) Shimano TC500, $12 imes 100ext{mm}$ centerlock / (R) Shimano TC500, $12 imes 142ext{mm}$ centerlock.
- Spokes: Stainless Steel, 14g.
Components
- Handlebar: Cannondale 3, butted 6061 Alloy, $16^circ$ flare drop.Widths: 400mm (XS), 420mm (SM-MD), 440mm (LG-XL).
- Stem: Cannondale 3, 6061 Alloy, $31.8ext{mm}$, $7^circ$.Lengths: 80mm (XS), 90mm (SM-MD), 100mm (LG-XL).
- Grips: Cannondale KnurlCork, 2.7mm.
- Saddle: Selle Royal SRX Open.
- Seatpost: Cannondale 3, 6061 Alloy, $27.2 imes 350ext{mm}$.
Extras
- Included: Tubeless valves.














































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