OutFront Steering Geometry
Confident stability meets nimble agility. An extra long fork offset paired with a slack head angle keeps the steering light and lively, yet delivers unreal confidence at speed and in the rough stuff.
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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
- microSHIFT Advent X, wide range 10-speed group
- Powerful disc brakes
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.
Easy to Live With. Easy to Love.
Everything on the Topstone is designed for simplicity, ease of use and compatibility. Whether you're setting out on a big ride or taking the long way to work - less down time, more ride time.
Load Up. Roll Out.
With plentiful gear and waterbottle mounts on the frame and fork, Topstone is ready to load up and go long.
Features
Full Carbon Fork
Light, comfortable and precise. An all-new carbon fork features three mount bosses on each leg for maximizing cargo capacity, plus an easy mounting point for fenders - letting you ride any adventure in any condition.
Dropper Ready
Built to accept an internally-routed 27.2 dropper seatpost, which shouldn’t really be a surprise on a bike that's this off-road capable.
Specs
Details
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Platform
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Model NameTopstone 4
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Model CodeC15902U
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 DerailleurmicroSHIFT Advent X
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ShiftersmicroSHIFT Advent X, 10-speed
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ChainKMC X10, 10-speed
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CrankProwheel, Charm 40T
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Rear CogsmicroSHIFT, 11-48, 10-speed
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Bottom BracketCartridge, square taper
Brakes
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BrakesPromax Render R mechanical disc, 160/160mm rotors
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Brake LeversmicroSHIFT Advent X
Wheels
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RimsGXD 1.0, 28h
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SpokesStainless Steel, 14g
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TiresWTB Riddler Comp, 700x37c (Europe/UK - Vittoria Terreno Dry, 700x37c)
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Tire Size37
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Wheel Size700c
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Hubs(F) Formula alloy, 12x100mm / (R) Formula alloy, 12x142mm
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Front TireWTB Riddler Comp, 700x37c (Europe/UK - Vittoria Terreno Dry, 700x37c)
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Rear TireWTB Riddler Comp, 700x37c (Europe/UK - Vittoria Terreno Dry, 700x37c)
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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SaddleCannondale Stage CX
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SeatpostCannondale 4, 6061 Alloy, 27.2x350mm
Extra
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Extra 1Removable fender bridge
Please note that, based on component availability and other factors, specifications are subject to change without notice.
Geometry
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