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Description
A company project that researched the specific requirements of gravel riding has conceived the Cannondale Topstone Carbon Lefty 3 Disc Gravel Bike. Designed from the ground up, the Topstone Lefty Carbon delivers the pinnacle of performance to all adventure riders who have an unsatisfied desire to explore further and higher into the previously uncharted.
The frame utilises BallisTec Carbon and this material is configured within a size-specific pattern to grant a reactive and positive ride experience. Integrated into this main chassis is the Kingpin suspension configuration that, thanks to the amalgamated specific tube profiles and LockR Pivot system, provides 30mm of plush travel to absorb impacts and increase rear wheel traction. The Lefty Oliver fork then complements the chassis with its lightweight and stiff suspension construction increasing ride accuracy and control over even the harshest of roads and paths.
The 650b wheelset features WTB alloy rims that are burly and composed with their circumference permitting the use of the ultra-wide 47mm tyres. This tyre width provides all of the grip and control necessary for the heaviest of gravel roads before a robust hubset ensures of low-maintenance and reliability within the harshest of conditions.
Any landscape, from fast roads to technical off-road climbs, can be conquered thanks to the wide-ranging 11-speed cassette with this being actuated by the reliable and crisp gear changes of the Shimano GRX groupset. The consistent and efficient forward drive is then provided by the revered Cannondale crank arms before the fully hydraulic brake system ensures powerful but controlled stopping through any conditions.
The already comprehensive features list is then crowned with a vibration killing Cannondale carbon seatpost, aesthetically pleasing and maintenance-friendly cable routing and full mudguard compatibility for when wet weather protection is required.
Frame | Cannondale BallisTec Carbon Frame | Kingpin suspension system | 12x142 Speed Release thru-axle | dropper post compatible | direct line cable routing |
Fork | Cannondale Lefty Oliver | 30mm travel | Chamber Damper with All-Over tune | ISO High-Ride air spring | tapered steerer | 650b | 55mm offset |
Headset | Integrated, 1-1/8" - 1-1/2" |
Stem | Cannondale 2, 6061 Alloy, 31.8, 7° |
Handlebar | Cannondale 3, butted 6061 alloy, 16-degree flare drop |
Grips | Cannondale Bar Tape, 3.5mm |
Front Brake | Shimano GRX 400 hydraulic disc,160mm RT76 rotor |
Rear Brake | Shimano GRX 400 hydraulic disc, 160mm RT76 rotor |
Brake Levers | Shimano GRX 600 hydraulic disc |
Front Derailleur | N/A |
Rear Derailleur | Shimano GRX 800 Wide, 11-speed |
Shift Levers | Shimano GRX 600, 11-speed |
Cassette | Shimano SLX, 11-42, 11-speed |
Chain | Shimano HG601, 11-speed |
Crankset | Cannondale 1, BB30a, OPI SpideRing, 40 tooth chainring |
Bottom Bracket | Cannondale BB30 |
Front Wheel | WTB ST i23 TCS, 28 hole, tubeless-ready alloy rims, | Lefty 50 6-bolt hub | 28 x stainless steel, 14g spokes |
Rear Wheel | WTB ST i23 TCS, 28 hole, tubeless-ready alloy rims | Formula DHT142, 12x142mm center lock hub | 28 x stainless steel, 14g spokes |
Front Tyre | WTB Venture TCS Light, 650 x 47c, tubeless-ready |
Rear Tyre | WTB Byway TCS Light, 650 x 47c, tubeless-ready |
Saddle | Fabric Scoop Shallow Elite, cro-mo rails |
Seatpost | Cannondale 2, UD Carbon, 27.2 x 350mm |
Pedals | Available to be purchased separately |
Manufacturer Claimed Weight | 9.5kg / 20.94lbs (size S) |
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Highlights
Product Highlights
The BallisTec carbon frame is light, stiff and compliant for a lively but composed ride.
The lightweight Kingpin system at the rear of the frame gives up to 30mm of plush suspension.
A precise, gravel specific gear setup with a wide range of ratios is ideal for any terrain.
A gravel-specific suspension fork, the Lefty Oliver grants 30mm of bump taming travel.
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Important Update for Our Canadian Customers
We regret to inform you that shopping on Sigma Sports is temporarily unavailable for customers based in Canada.
We understand how disappointing this may be and sincerely apologize for any inconvenience caused. Please rest assured that we are actively exploring solutions to resume service and find the best way to support our Canadian community.
We appreciate your patience and understanding during this time, and we look forward to welcoming you back as soon as possible.
If you require any further assistance, please reach out to the customer services team
— The Sigma Sports Team