Cannondale Topstone Carbon Ultegra RX Bike - 2020
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A gravel bike with real suspension, the Cannondale Topstone Carbon Ultegra RX 2 bike is a capable off-road, comfortable on-road adventure rig with more give and more go.
Shop similar productsKey Details
- Shimano Ultegra RX 2 x 11 mechanical drivetrain uses a clutch design that cuts chain chatter and maintains crisp, accurate shifting over bumpy ground
- Hydraulic disc brakes offer excellent stopping power on any terrain
- Lightweight KingPin 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 30mm of travel at the saddle thanks to a thru-axle pivot joining the seatstays and seat tube
- Flex zones in the chainstays, seat tube and top tube offer compliance at the saddle and added absorption at the rear axle
- Comes with big 700c x 37mm tires for grip and comfort, but fits up to 700c x 40mm tires thanks to a roomy design with tons of clearance
- Also fits smaller 650b wheels with up to 48mm wide tires for riders who are looking for maximum flotation
- Store gear and water with multiposition mounts on the down tube, top tube, seat tube and under the down tube—there are even mounts on the fork
- Fully fender ready; a removable fender bridge on the rear stays is there when you need it and gone when you don't
- 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 cable 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 dropper seatpost (not included)
- Balanced riding position is upright enough for comfort over the long haul and control for 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
- NOTE: Specs and images are subject to change based on component availability
Imported.
- 1 year of free adjustments (see more below)
- In-store bike assembly
- Pickup in store or curbside
- Bike experts available at 170+ bike shops
- 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)
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.
| Best Use | Road Cycling |
|---|---|
| Frame | BallisTec Carbon, Kingpin suspension system, Proportional Response size-specific construction, Directline internal cable routing, BB30-83 Ai, 142x12 Speed Release thru-axle, flat-mount disc, |
| Bike Suspension | No Suspension |
| Fork | BallisTec Carbon, 55mm OutFront offset, SAVE, 1-1/8 to 1-1/2 in. steerer, integrated crown race, Directline internal routing, 12x100mm Speed Release thru-axle, flat mount disc |
| Crankset | Cannondale 1, BB30a, FSA rings, 46/30 |
| Bottom Bracket | FSA Cartridge |
| Shifters | Shimano Ultegra hydro disc, 2x11 |
| Front Derailleur | Shimano Ultegra, braze-on |
| Rear Derailleur | Shimano Ultegra RX |
| Rear Cogs | Shimano Ultegra, 11-34, 11-speed |
| Number of Gears | 22 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano Ultegra hydro disc, 160/160mm RT54 rotors |
| Brake Levers | Shimano Ultegra hydro disc |
| Rims | HollowGram 22, 22mm deep, 25mm ID, tubeless ready |
| Front Hub | Formula CL-712, 12x100 center lock |
| Rear Hub | Formula RXC-142S |
| Wheel Size | 700c |
| Tires | WTB Riddler TCS Light, 700c x 37mm, tubeless ready |
| Tire Width | 37 millimeters |
| Handlebar Shape | Drop Bar |
| Handlebar | Cannondale 3, butted 6061 alloy, 16 deg flare drop |
| Stem | Cannondale 3, 6061 alloy, 7° |
| Seat Post | Cannondale C3, 6061 Alloy, 27.2 x 350mm (44-56), 400mm (58-63) |
| Saddle | Fabric Scoop Radius Sport, steel rails |
| Pedals | Not included |
| Headset | Topstone Si, 25mm Alloy top cap |
| Chain | Shimano HG601 11-speed |
| Weight | 18 lbs. 9.6 oz. |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Unisex |
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Reach | 36.8 | 37.7 | 38.5 | 39.4 | 40.2 |
| Stack | 51.8 | 54.9 | 57.9 | 61.0 | 64.0 |
| Effective Top Tube | 52.5 | 54.4 | 56.1 | 57.9 | 59.6 |
| Seat Tube Center-Top | 41.0 | 45.8 | 50.5 | 55.3 | 60.0 |
| Standover Height | 71.5 | 76.1 | 80.3 | 84.3 | 88.5 |
| Head Tube Length | 9.7 | 13.1 | 16.5 | 19.8 | 23.2 |
| Head Tube Angle (degrees) | 70.0° | 71.2° | 71.2° | 71.2° | 71.2° |
| Seat Tube Angle (degrees) | 73.1° | 73.1° | 73.1° | 73.1° | 73.1° |
| Bottom Bracket Height | 27.3 | 27.8 | 28.0 | 28.0 | 28.3 |
| Wheelbase | 99.9 | 101.0 | 103.0 | 104.0 | 106.0 |
| Chainstay | 41.5 | 41.5 | 41.5 | 41.5 | 41.5 |
| Fork Offset | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 |
Sizing Notes
Measurements are stated in centimeters unless otherwise indicated.
How we measure bikes
- 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.
- Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
- 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.
- 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.
- 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.
- Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
- Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
- Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
- Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
- Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
- Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
- 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.