Cannondale  Topstone Carbon 5 Bike

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Color: Graphite
Size: L
Shipping restrictions apply.
$85 oversize shipping applies.

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With rear suspension and fast-rolling 700c wheels, the Cannondale Topstone Carbon 5 bike is as capable off road as it is on, offering comfort, control and speed for big days on gravel and pavement.


  • Shimano GRX 800/600 2 x 11-speed drivetrain uses an adjustable chain stabilizer to cut chain chatter and maintain crisp, accurate shifting over bumpy ground
  • Lightweight KingPin rear suspension system lets you ride harder on dirt and more smoothly on pavement, giving you better control, traction and comfort
  • KingPin system provides up to 30 mm of travel at the saddle thanks to a thru-axle pivot joining the seatstays and seat tube
  • Thru-axle pivot locks the left and right seatstays together, preventing independent rotation for a solid feel and an instantaneous response
  • Comes with big 700c x 37 mm tires for grip and comfort, but fits up to 700c x 40 mm tires (not included) thanks to a roomy design with tons of clearance
  • Also fits smaller 650b wheels with up to 48 mm wide tires for riders seeking maximum flotation
  • Fully fender ready: A removable fender bridge on the rear stays is there when you need it and gone when you don't
  • Store gear and water with multiposition mounts on the top tube, seat tube and under the down tube—there are even mounts on the fork
  • Speed Release thru axles offer the stiffness and solid feel of a thru axle with the easy use of a quick-release axle; compatible with most thru-axle wheelsets
  • Direct Line internal cable routing guides the cables and housing through the frame using an internal tube from entry to exit for headache-free service
  • Refined geometry and rider position deliver an experience that's stable, composed and comfortable without losing that spark
  • Built to accept an internally routed 27.2 mm dropper seatpost (not included)
  • Balanced riding position is upright enough for comfort over the long haul and control over technical off-road terrain, yet still low and forward enough for speedy efficiency
  • OutFront steering geometry keeps the steering light and agile, while positioning the wheel farther in front of the rider for stability and confidence on rougher stuff
  • An integrated wheel sensor delivers hyperaccurate speed, route and distance info, bike registration, service reminders and more—all through the free Cannondale app
  • Suspension and overall frame ride-feel are custom-tuned by size using different carbon layup and tube dimensions
  • Pedals not included
  • Specs and images are subject to change


This bike comes with Coast to Coast Support, which includes:
  • 1 year of free adjustments (see more below)
  • In-store bike assembly
  • Pickup in store or curbside
  • Bike experts available at 170+ bike shops
REI Co-op Members get more:
  • 20% off shop services
  • Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
More about our free adjustments:
New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.

View the Cannondale Topstone Product LineView all Cannondale Gravel Bikes

Technical Specs

Item #182628
Best Use

Gravel Cycling

Road Cycling


BallisTec Carbon Frame, Kingpin suspension system, 12x142 Speed Release Thru-axle, dropper post compatible, direct line cable routing


BallisTec Carbon, 55 mm OutFront offset, internal routing, 12x100 speed release thru axle, flat mount disc

Bike Suspension

Rear Suspension


Cannondale, BB30a, OPI SpideRing, 46/30T

Bottom Bracket

Cannondale BB30


Shimano GRX 600, 2 x 11-speed

Front Derailleur

Shimano GRX 800, braze-on

Rear Derailleur

Shimano GRX 812, Shadow RD+

Rear Cogs

Shimano 105, 11-34T, 11-speed

Number of Gears

22 gear(s)

Brake Type

Hydraulic Disc Brake


Shimano GRX 400 hydraulic disc, 160/160 mm RT64 rotors

Brake Levers

Shimano GRX 600 hydraulic disc


WTB ST i23 TCS, 28h, tubeless ready

Front Hub

Formula CL-712, 12 x 100 mm, Centerlock

Rear Hub

Formula RXC-400, 12 x 142 mm, Centerlock

Wheel Size



WTB Riddler TCS Light, 700c x 37 mm, tubeless ready

Tire Width

37 millimeters

Handlebar Shape

Drop Bar


Cannondale 3, butted 6061 alloy, 16° flare drop


Cannondale 3, 6061 Alloy, 31.8, 7°

Seat Post

Cannondale 3, 6061 Alloy, 27.2 x 350 mm


Fabric Scoop Shallow Sport, steel rails


Not included


Integrated, 1-1/2 in. lower to 1-1/8 in. upper


KMC X11, 11-speed


20 lbs. 12.8 oz.

Bike Weight

Bike weight is based on median size, as sold, or the average of two median sizes.



Size Chart

Height Range5'0" - 5'5"5'4" - 5'9"5'7" - 6'1"5'11" - 6'4"6'3" - 6'8"
Effective Top Tube52.554.456.157.959.6
Seat Tube Center-Top41.045.850.555.360.0
Standover Height71.576.180.384.388.5
Head Tube Length9.713.116.519.823.2
Head Tube Angle (degrees)
Seat Tube Angle (degrees)
Bottom Bracket Height27.327.828.028.028.3
Fork Offset5.

Sizing Notes

Measurements are stated in centimeters unless otherwise indicated.

How we measure bikes

  1. Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
  2. Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
  3. Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
  4. Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
  5. Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
  6. Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
  7. Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
  8. Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
  9. Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
  10. Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
  11. Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
  12. Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.

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