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 800/600 11-speed shifting
- WTB ST i23 TCS rims
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.
Specifications:
Details:
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Platform:
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Model Name:Topstone 1
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Model Code:C15602U
Frameset:
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Frame:Lightweight SmartForm C2 Alloy, 12x142 thru-axle, tapered headtube, BSA threaded BBm flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts
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Fork:Topstone Carbon, 1-1/8" to 1.5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru-axle, fender/gear mounts
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Headset:Integrated, 1-1/8" - 1.5"
Drivetrain:
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Rear Derailleur:Shimano GRX 810, Shadow RD+
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Front Derailleur:Shimano GRX 800
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Shifters:Shimano GRX 600, 11-speed
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Chain:KMC X11, 11-speed
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Crank:FSA Gossamer Pro Modular AGX+, 46/30
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Rear Cogs:Shimano 105, 11-34, 11-speed
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Bottom Bracket:FSA BB386 MegaEvo
Brakes:
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Brakes:Shimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
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Brake Levers:Shimano GRX 600 hydraulic disc
Wheels:
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Rims:WTB ST i23 TCS, 28h, tubeless ready
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Spokes:Stainless Steel, 14g
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Tire Size:37
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Wheel Size:700c
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Hubs:(F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock
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Tires:WTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
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Front Tire:WTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
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Rear Tire:WTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
Components:
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Handlebar:Cannondale 3, butted 6061 Alloy, 16 deg flare drop
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Stem:Cannondale 3, 6061 Alloy, 31.8, 7°
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Grips:Cannondale Bar Tape, 3.5mm
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Saddle:Fizik Aliante Delta, S-alloy rails
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Seatpost:Cannondale 3, 6061 Alloy, 27.2x350mm
Extra:
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Extra 1:Removable fender bridge
Please note that, based on component availability and other factors, specifications are subject to change without notice.