Explore further. Ride freer.

An amazingly capable, versatile gravel road bike. Built for chasing horizons, exploring routes less travelled or accelerating your commute.

Where it thrives

Gravel roads, out in the elements

What it's built for

Traction, handling, comfort

Highlights

• Lightweight SmartForm C2 Alloy frame w/ full carbon fork
• Shimano GRX 400 10-speed gravel group
• WTB ST i23 TCS rims w/ 700x37c WTB Riddler TCS Light tires

Amazingly capable

Straightforward, reliable and a whole hell of a lotta fun, the Topstone Alloy is a gravel bike crafted for those with a taste for adventure – and value. Roll light and free, or load it up for a long haul, Topstone’s comfortable ride, confident handling and up-for-anything capability make it the perfect partner on any road, anywhere.

Wide Ranging Capabilities

Clearance for big 45mm tires lets you push further into the rough stuff, and enjoy more grip and comfort on every ride.

Specs

Frame 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" - 1-1/2"
Rear Derailleur Shimano GRX 400, Shadow RD+
Shifters Shimano GRX 400, 10-speed
Chain KMC X10, 10-speed
Crank FSA Omega AGX+ Alloy, 46/30
Rear Cogs Shimano HG500, 11-34, 10-speed
Brakes Shimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
Brake Levers Shimano GRX 400 hydraulic disc
Rims WTB ST i23 TCS, 28h, tubeless ready
Spokes Stainless Steel, 14g
Tires WTB Riddler TCS Light, 700 x 37c, tubeless ready
Tire Size 37
Wheel Size 700c
Front Tire WTB Riddler TCS Light, 700 x 37c, tubeless ready
Rear Tire WTB Riddler TCS Light, 700 x 37c, tubeless ready
Handlebar Cannondale 3, butted 6061 Alloy, 16 deg flare drop
Stem Cannondale 3, 6061 Alloy, 31.8, 7°
Grips Cannondale Bar Tape, 3.5mm
Saddle Fizik Aliante Delta, S-alloy rails
Seatpost Cannondale 3, 6061 Alloy, 27.2 x 350mm
Extra 1 Removable fender bridge