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.

Where it thrives: Gravel roads, out in the elements

What it's built for: Traction, handling, comfort

Features

• Lightweight SmartForm C2 Alloy frame w/ full carbon fork
• Shimano GRX 820/600 12-speed gravel group
• Shimano GRX 600/400 hydraulic disc brakes
• WTB ST i23 TCS tubeless ready rims with Riddler 700x37c tires

Specifications:

• 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"
• Rear Derailleur: Shimano GRX 820, Shadow RD+
• Front Derailleur: Shimano GRX 820
• Shifters: Shimano GRX 600, 12-speed
• Chain: Shimano HG M7100, 12-speed
• Crank: Shimano GRX 600, 46/30
• Rear Cogs: Shimano HG R7100, 11-34, 12-speed
• Bottom Bracket: Shimano BSA 68
• Brakes: Shimano GRX 400 hydraulic disc, 160/160mm RT64 rotors
• Brake Levers: Shimano GRX 600 hydraulic disc
• Rims: WTB ST i23 TCS, 28h, tubeless ready
• Spokes: Stainless Steel, 14g
• Tire Size: 37
• Wheel Size: 700
• Hubs: (F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock
• Tires: WTB Riddler TCS Light, 700x37c, 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, 27.2x350mm
• Extras: Tubeless valve stems

Geometry