SmartSense Ready
Make every ride better with enhanced visibility and awareness. The SmartSense-ready frame means it’s easy to upgrade to our system of intelligent running lights and rear-facing radar.
Nothing is impassable
The best gravel bike for anything from dirt roads to singletrack trails. With the grip and comfort of the Kingpin suspension, nothing is off-limits.
Where it thrives
Gravel and Dirt Roads, Rough Pavement, Trails
What it’s built for
Gravel riding, back road exploring, bike packing and off-road adventures
Highlights
- Lightweight Topstone Carbon frameset with Kingpin suspension, SmartSense compatible / Integrated Cannondale App connectivity
- Shimano GRX 600/400 10-speed gravel group
- WTB ST i23 TCS rims
Nothing is Impassable
Kingpin Suspension
Delivering a smooth ride without the added weight and complexity of a shock and links, Kingpin is our answer for the most demanding gravel riders. Whether you need more comfort to go long, more traction to push beyond or more give to take on the tech – Kingpin is the maintenance-free, lightweight answer to your prayers.
Get to Know Kingpin Suspension
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Features
Dropper Ready
Built to accept an internally-routed 27.2mm dropper seatpost, which shouldn’t really be a surprise on a bike this off-road capable.
Engineered Simplicity
Low-friction bushings on the Kingpin thru-axle offer smooth action, maintenance-free reliability and over 100 grams of weight savings vs conventional cartridge bearings.
Clearance and Compatibility
The new dropped chainstay design lets you run big volume tires (up to 700x45mm or 27.5×2.1″, with 6mm of mud-shedding clearance on each side), all with a standard dish rear wheel for easy interchangeability.
Load Up. Roll Out.
With plentiful gear and waterbottle mounts on the frame and fork, Topstone Carbon is ready to load up and go long.
Corner like a Boss
Rail through the rough and come out smiling. Led by our OutFront steering geometry, the Topstone Carbon offers up handling that’s serenely stable in the chop, and light & nimble everywhere else.
Topstone Carbon Explained
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Specs
DETAILS
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Platform
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Model NameTopstone Carbon 4
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Model CodeC15402U
FRAMESET
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FrameTopstone Carbon, Kingpin suspension system, SmartSense compatible, Proportional Response construction, 12x142mm thru-axle, 27.2 dropper post ready, BSA 68mm threaded BB, DirectLine internal cable routing, removable fender bridge, 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, 12×100 thru-axle, triple bottle/gear mounts, fender mounts
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HeadsetIntegrated, 1-1/8″ – 1-1/2″
DRIVETRAIN
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Rear DerailleurShimano GRX 400, Shadow RD+
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Front DerailleurShimano GRX 400, braze-on
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ShiftersShimano GRX 400, 10-speed
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ChainKMC X10, 10-speed
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CrankShimano GRX 600, 46/30 (Europe/UK – FSA Gossamer Pro Modular AGX+, 46/30)
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Rear CogsShimano HG500, 11-34, 10-speed
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Bottom BracketShimano BSA 68
BRAKES
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BrakesShimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
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Brake LeversShimano GRX 400 hydraulic disc
WHEELS
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RimsWTB ST i23 TCS, 700c, 28h, tubeless ready
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SpokesStainless Steel, 14g
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TiresWTB Riddler Comp, 700 x 45c (Europe/UK – Vittoria Terreno Dry 700 x 40c)
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Tire Size45
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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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Front TireWTB Riddler Comp, 700 x 45c
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Rear TireWTB Riddler Comp, 700 x 45c
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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GripsFizik Solocush Soft, 3mm
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SaddleFizik Aliante Delta, S-alloy rails
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SeatpostCannondale 3, 6061 Alloy, 27.2 x 350mm
CONNECTIVITY
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Wheel SensorCannondale Wheel Sensor
EXTRA
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Extra 1StrapRack toolholder
PLEASE NOTE THAT, BASED ON COMPONENT AVAILABILITY AND OTHER FACTORS, SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE.
Geometry
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