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
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
DETAILS
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Platform
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Model NameTopstone 1
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Model CodeC15602U
FRAMESET
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FrameLightweight 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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ForkTopstone 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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HeadsetIntegrated, 1-1/8" - 1.5"
DRIVETRAIN
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Rear DerailleurShimano GRX 810, Shadow RD+
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Front DerailleurShimano GRX 800
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ShiftersShimano GRX 600, 11-speed
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ChainKMC X11, 11-speed
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CrankFSA Gossamer Pro Modular AGX+, 46/30
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Rear CogsShimano 105, 11-34, 11-speed
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Bottom BracketFSA BB386 MegaEvo
BRAKES
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BrakesShimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
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Brake LeversShimano GRX 600 hydraulic disc
WHEELS
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RimsWTB ST i23 TCS, 28h, tubeless ready
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SpokesStainless Steel, 14g
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Tire Size37
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Wheel Size700c
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Hubs(F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock
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TiresWTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
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Front TireWTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
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Rear TireWTB Riddler TCS Light, 700x37c, tubeless ready (Europe/UK - Vittoria Terreno Dry, 700x35c, foldable)
COMPONENTS
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HandlebarCannondale 3, butted 6061 Alloy, 16 deg flare drop
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StemCannondale 3, 6061 Alloy, 31.8, 7°
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GripsCannondale Bar Tape, 3.5mm
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SaddleFizik Aliante Delta, S-alloy rails
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SeatpostCannondale 3, 6061 Alloy, 27.2x350mm
EXTRA
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Extra 1Removable fender bridge
- Geometry
