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.
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 Radar & Light equipped
- SRAM Force eTap electronic 12-speed group / FSA K-Wing AGX Carbon bars
- HollowGram G-SL 27 Carbon wheels
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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Ride Brilliantly
On every ride, SmartSense has your back. With SmartSense’s system of rear-facing radar and intelligent lights increasing your awareness and visibility out on the open road, it’s never been easier to ride smart.
Features
Clearance and Compatibility
The new dropped chainstay design lets you run big volume tires (up to 700x45mm or 27.5x2.1", with 6mm of mud-shedding clearance on each side), all with a standard dish rear wheel for easy interchangeability.
Tuned for the Rider
Our Proportional Response size-specific construction creates optimal frame stiffness and compliance for each frame size, so that every rider has the ideal ride feel and comfort of Kingpin.
SmartSense Equipped
Our intelligent system of running lights and rear-facing radar is fully integrated and powered by a single power source for total convenience. More visibility. Better awareness. Less pre-ride fiddling.
Hollowgram G-SL 27 Carbon Wheels
Light, smooth and guaranteed for life, these carbon hoops were made for gravel! The 27mm internal width is perfect for bigger tires and the 21mm deep profile takes the sting out of the rough and rugged. With DT Aerolite spokes and DT Swiss 240 EXP internals, they weigh a mere 1325 grams/pair.
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.
Connected
An integrated wheel sensor delivers hyper-accurate speed, route and distance info while you ride, registers your bike, reminds you of needed service and more, all through the free Cannondale App.
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.
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 1 RLE
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Model CodeC15052U
Frameset
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FrameTopstone Carbon, Kingpin suspension system, SmartSense equipped, 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, 12x100 thru-axle, triple bottle/gear mounts, fender mounts
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HeadsetIntegrated, Carbon, 1-1/8" - 1-1/2"
Drivetrain
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Rear DerailleurSRAM Force eTap AXS
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Front DerailleurSRAM Force eTap AXS Wide, braze-on
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ShiftersSRAM Force eTap AXS, 12-speed
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ChainSRAM Force, 12-speed
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CrankSRAM Force Wide, 43/30
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Rear CogsSRAM XG-1270, 10-36, 12-speed
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Bottom BracketSRAM DUB BSA Road 68 Wide
Brakes
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BrakesSRAM Force eTap AXS hydraulic disc, 160/160mm CenterLine centerlock rotors
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Brake LeversSRAM Force eTap AXS
Wheels
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RimsHollowGram G-SL 27 Carbon, 700c, 27mm internal width, 21mm deep, 28h, hookless, tubeless compatible
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SpokesDT Swiss Aerolite
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TiresWTB Vulpine TCS Light, 700x40c, tubeless ready (Europe/UK - Vittoria Terreno Dry 700x38c ANT tubeless compatible)
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Tire Size45
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Wheel Size700c
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Hubs(F) HollowGram, sealed bearing 12x100mm, 6 bolt / (R) HollowGram 12x142mm w/ DT Swiss 240 EXP internals, 6 bolt
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Front TireWTB Vulpine TCS Light, 700x40c, tubeless ready (Europe/UK - Vittoria Terreno Dry 700x38c ANT tubeless compatible)
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Rear TireWTB Vulpine TCS Light, 700x40c, tubeless ready (Europe/UK - Vittoria Terreno Dry 700x38c ANT tubeless compatible)
Components
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HandlebarFSA K-Wing AGX Carbon
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StemFSA SL-K Stem, Alloy, -6°
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GripsFizik Solocush Soft, 3mm
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SaddleFizik Terra Argo X3, kium rails
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SeatpostSAVE Carbon SmartSense, 27.2, 350mm (XS-L), 400mm (XL)
Connectivity
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Wheel SensorCannondale Wheel Sensor
Extra
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Extra 1SmartSense with Lights, Garmin Varia Radar and Trainer-compatible thru-axle
Please note that, based on component availability and other factors, specifications are subject to change without notice.
Geometry
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