For riders who enjoy nothing more than spending long days in the saddle, seeking out new routes unbound to the limits of tarmac, the Cannondale Topstone Carbon 4 Gravel Bike is a superb companion. The BallisTec carbon fibre frame and fork deliver a light handling bike that surges when you give it a push, while the Kingpin suspension system really boosts compliance and comfort.
Ensuring you make the most of your riding off-road, Cannondale has specified the excellent Shimano GRX 800 groupset, with some key features that make riding the rough stuff a pleasure. The rear derailleur boasts a clutch mechanism which dramatically reduces chain slap, so you can ride harder over bumps. Shifting is quick and light, and the hydraulic disc brakes provide all the stopping power you need, in wet or dry conditions.
Cannondale's much-admired OPI SpideRing crankset comes with sub-compact chainrings and is paired with a wide 11-34t cassette so you can head off without fear of steep hills, and you'll have enough gears to keep up with friends on road bikes too. The wide WTB 37mm tyres come tubeless-ready along with the rims, so you can choose to set them up without tubes for even lower pressure and better traction on the trails.
Frame | Cannondale BallisTec Carbon Frame, Kingpin suspension system, 12x142 Speed Release thru-axle, dropper post compatible, direct line cable routing |
Fork | Cannondale BallisTec Full Carbon, 1-1/8" to 1.5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 Speed Release thru-axle |
Headset | Integrated, 1-1/8" - 1.5" |
Bottom Bracket | Cannondale BB30 |
Stem | Cannondale 2, 6061 Alloy, 31.8, 7° |
Handlebar | Cannondale 3, butted 6061 alloy, 16 deg flare drop |
Bar Tape | Cannondale Bar Tape, 3.5mm |
Front Brake | Shimano GRX 800 hydraulic disc, 160mm RT70 rotor |
Rear Brake | Shimano GRX 800 hydraulic disc, 160mm RT70 rotor |
Brake Levers | Shimano GRX 800 hydraulic disc |
Front Derailleur | Shimano GRX 800, braze-on |
Rear Derailleur | Shimano GRX 810, Shadow RD+ |
Shift Levers | Shimano GRX 800, 11-speed |
Chain | Shimano HG601, 11-speed |
Cassette | Shimano 105, 11-34, 11-speed |
Crankset | Cannondale, BB30a, OPI SpideRing, 46/30t |
Front Wheel | WTB KOM Light i23 TCS, 28-hole, tubeless-ready rim | Formula cartridge bearing, Center Lock, 12x100mm hub | stainless steel, 14-gram spokes |
Rear Wheel | WTB KOM Light i23 TCS, 28-hole, tubeless-ready rim | Formula cartridge bearing, Center Lock, 12x142mm hub | stainless steel, 14-gram spokes |
Front Tyre | WTB Riddler TCS Light, 700 x 37c, tubeless-ready clincher |
Rear Tyre | WTB Riddler TCS Light, 700 x 37c, tubeless-ready clincher |
Saddle | Fabric Scoop Shallow Elite, cro-mo rails |
Seatpost | Cannondale 2, UD Carbon, 27.2 x 350mm |
Pedals | Available to be purchased separately |
Accessories | Cannondale Wheel Sensor, Removable mudguard bridge |
XS | S | M | L | XL | |
Rider Height (cm) | 152 - 165 | 162 - 175 | 170 - 185 | 180 - 193 | 190 - 203 |
Rider Height (inches) | 5'0" - 5'5" | 5'4" - 5'9" | 5'7" - 6'1" | 5'11" - 6'4" | 6'3" - 6'8" |
Seat Tube (ctr-top) | 410 | 458 | 505 | 553 | 600 |
Seat Tube (ctr-ctr) | - | - | - | - | - |
Effective Top Tube | 525 | 544 | 561 | 579 | 596 |
Actual Top Tube | - | - | - | - | - |
Seat Angle (°) | 73.1 | 73.1 | 73.1 | 73.1 | 73.1 |
Head Tube Angle (°) | 70 | 71.2 | 71.2 | 71.2 | 71.2 |
Head Tube Length | 97 | 131 | 165 | 198 | 232 |
Fork Rake | 55 | 55 | 55 | 55 | 55 |
Chainstay Length | 415 | 415 | 415 | 415 | 415 |
Wheelbase | 999 | 1010 | 1030 | 1040 | 1060 |
Stack | 518 | 549 | 579 | 610 | 640 |
Reach | 368 | 377 | 385 | 394 | 402 |
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