Lefty Oliver
The ultimate gravel suspension fork. Unique single-sided design and needle-bearing internals deliver unmatched steering precision and smoothness for unreal control and comfort.
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Nothing is impassable
The best dual-suspension gravel bike for rugged dirt roads and singletrack trails. With the Kingpin system and Lefty fork, 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 frame with Kingpin suspension / Lefty Oliver gravel suspension fork, 30mm travel
- Shimano GRX 800/600 11-speed gravel group / DownLow dropper post
- WTB KOM Light 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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Lefty Goes Big
The smoothest, most-precise handling gravel fork in the world. With 30mm of bob-free travel and room for 700x45mm tires, Lefty Oliver lives to push the boundaries with comfort and control.
Features
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 27.5x2.1", 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 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.
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 2 Lefty
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Model CodeC15202U
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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ForkLefty Oliver, 30mm travel, lockout, Chamber Damper w/ All-Over tune, ISO High-Ride air spring, tapered steerer, 700c, 55mm offset
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HeadsetIntegrated, Carbon, 1-1/8" - 1-1/2"
Drivetrain
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Rear DerailleurShimano GRX 810, Shadow RD+
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ShiftersShimano GRX 800, 11-speed
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ChainShimano HG701, 11-speed
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CrankShimano GRX 600, 40T (Europe/UK - FSA Gossamer Pro Modular AGX+, 40T)
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Rear CogsShimano SLX, 11-42, 11-speed
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Bottom BracketShimano BSA 68
Brakes
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BrakesShimano GRX 800 hydraulic disc, 160/160mm RT76 rotors
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Brake LeversShimano GRX 800 hydraulic disc
Wheels
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RimsWTB KOM Light i23 TCS, 700c, 28h, tubeless ready
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SpokesStainless Steel, 14g
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Tire Size44
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Wheel Size700c
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Hubs(F) Lefty 50, 6-Bolt / (R) Formula cartridge bearing, 6-Bolt, 12x142mm
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TiresWTB Raddler TCS Light, 700x44c, tubeless ready (Europe/UK - Vittoria Mezcal III 700x44c ANT tubeless compatible)
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Front TireWTB Raddler TCS Light, 700x44c, tubeless ready (Europe/UK - Vittoria Mezcal III 700x44c ANT tubeless compatible)
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Rear TireWTB Raddler TCS Light, 700x44c, tubeless ready (Europe/UK - Vittoria Mezcal III 700x44c ANT tubeless compatible)
Components
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HandlebarCannondale 2 ShortDrop, 7050 alloy, 12 deg flare drop
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StemCannondale 2, 6061 Alloy, 31.8, 7°
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GripsFizik Solocush Soft, 3mm
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SaddleFizik Terra Argo X5, S-alloy rails
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SeatpostCannondale DownLow Dropper Post, 27.2, shifter-integrated lever, travel - 60mm XS-S / 80mm M / 100mm L-XL
Connectivity
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Wheel SensorCannondale Wheel Sensor
Extra
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Extra 1StrapRack tool/stuff holder
Safety Information
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Ingestion Hazard
WARNING - INGESTION HAZARD: This product contains a button cell or coin battery. DEATH or serious injury can occur if ingested. A swallowed button cell or coin battery can cause Internal Chemical Burns in as little as 2 hours. KEEP new and used batteries OUT OF REACH OF CHILDREN. Seek immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.
Please note that, based on component availability and other factors, specifications are subject to change without notice.
Geometry
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