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CANNONDALE Topstone 4 2021 Gravel Bike

  • Blue 21
  • Blue 21
In Stock
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Product Description


A capable, versatile gravel road bike. Built for chasing horizons, exploring routes less travelled or accelerating your commute. A balanced riding position: upright enough for comfort over the long haul and control on technical terrain, yet still low and forward enough for speedy efficiency.

Built with plenty of room for tyres up to 42mm wide, for comfort, grip and adventurous capability. With mounts for three waterbottles, plus mounts for top tube storage, Topstone is ready to go long. Multiple bottle cage positions on the downtube mount let you configure for big frame bags.


Choosing the bike size depends on the type of bike, your height, your riding style, and your preference. A correct fitting bike will be more comfortable, more efficient and more fun to ride. This bike size guide gives our customers general advice on choosing the right size. It is a guide only and we always recommend visiting one of our stores or contacting one of our experts.

Seat Tube Length (mm) 410 458 505 553 600
Standover (mm) 703 744 784 825 863
Reach (mm) 368 377 385 394 402


Frame: SmartForm C2 Alloy, 12x142 thru-axle, tapered headtube, flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts
Fork: BallisTec Full Carbon, 1-1/8 to 1-1/4 steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru axle
Headset: Integrated, 1-1/8 - 1-1/4
Stem: Cannondale 3, 6061 Alloy, 31.8, 7°
Bars: Cannondale 3, butted 6061 alloy, 16 deg flare drop
Front Brake: Promax Render R mechanical disc, 160mm rotors
Rear Brake: Promax Render R mechanical disc, 160mm rotors
Brake Lever: microSHIFT Advent X
Rear Mech: microSHIFT Advent X
Shifters: microSHIFT Advent X, 10-speed
Speed: 10
Rims: RD 2.0, 28h
Front Hub: Formula alloy, 12x100mm
Rear Hub: Formula alloy, 12x142mm
Front Tyre: WTB Riddler Comp, 700 x 37c
Rear Tyre: WTB Riddler Comp, 700 x 37c
Seat Post: Cannondale 4, 6061 Alloy, 27.2 x 350mm
Saddle: Cannondale Stage CX
Chainset: Prowheel, 40T
Bottom Bracket: Cartridge, square taper
Chain: KMC X10, 10-speed
Cassette: microSHIFT, 11-48T, 10-speed

  • SmartForm C2 Alloy Frame for stiff but light construction allows you to convert more of your power into speed
  • BallisTec Full Carbon Fork is engineered to flex to absorb shock and vibration

  • microSHIFT Advent X, 10-speed drivetrain is designed for more aggressive riding on gravel surfaces

  • microSHIFT Advent X mechanical disc brakes give powerful, controllable and consistent stopping power with less effort

  • WTB Riddler Comp, 700 x 37c Tyres offer great traction off road and excellent rolling ability on the tarmac

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