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
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.
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 400, Shadow RD+
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Front Derailleur
Shimano GRX 400
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Shifters
Shimano GRX 400, 10-speed
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Crank
FSA Omega AGX+ Alloy, 46/30
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Rear Cogs
Shimano HG500, 11-34, 10-speed
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Bottom Bracket
FSA Cartridge
BRAKES
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Brakes
Shimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
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Brake Levers
Shimano GRX 400 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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Hubs
(F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock
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Tires
WTB Riddler, 700x37c (Europe/UK - Vittoria Terreno Dry, 700x37c)
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Front Tire
WTB Riddler, 700x37c (Europe/UK - Vittoria Terreno Dry, 700x37c)
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Rear Tire
WTB Riddler, 700x37c (Europe/UK - Vittoria Terreno Dry, 700x37c)
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
***Components subject to change without notice.