How to Choose a Gravel Bike
Cannondale Topstone 2 GRX 2x Bike
$2,199.00
Reliable and fun, this Cannondale 2 x 10-speed gravel bike's alloy frame and carbon fork provide a comfortable ride and confident handling for riders with a taste for adventure.
Key Details
Wheel Size
700c
Number of Gears
20 gear(s)
- Everything on the Topstone is designed for simplicity, ease of use and compatibility
- 2 chainrings, endless possibilities—use it for gravel riding, exploring, bikepacking and performance commuting
- SmartForm C2 alloy frame with a full carbon fork
- Full carbon fork is light, comfortable and precise; features 3 mount bosses on each leg for maximizing cargo capacity
- Fork has an easy mounting point for fenders, letting you ride any adventure in any condition
- Reliably precise shifting from the Shimano GRX 400, wide-range, 2 x 10-speed gravel drivetrain
- Powerful, controllable braking from Shimano GRX 400 hydraulic disc brakes
- OutFront steering geometry features an extra-long fork offset paired with a slack head angle to keep the steering light and lively; delivers confidence at speed
- Clearance for big 45mm tires lets you push further into the rough stuff, and enjoy more grip and comfort on every ride.
- Selle Royal SRX Open saddle balances supportive padding and a pressure-relieving central channel for performance comfort
- With plentiful gear and water bottle mounts on the frame and fork, the Topstone is ready to load up and go long
- Dropper ready—built to accept an internally routed 27.2 mm dropper seatpost (not included)
- Pedals not included
- NOTE: Specs and images are subject to change based on component availability
Imported.
This bike comes with Coast to Coast Support, which includes:
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- 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 | Gravel Cycling |
|---|---|
| Frame | Topstone, lightweight SmartForm C2 alloy, 12 x 142 thru axle, tapered headtube, BSA threaded BB, flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts |
| Step-Through | No |
| Bike Suspension | No Suspension |
| Fork | Topstone Carbon, 1-1/8 to 1-1/2 in. steerer, 55 mm OutFront offset, flat mount disc, internal routing, 12 x 100 thru axle, fender/gear mounts |
| Crankset | Shimano GRX 400 46/30T |
| Bottom Bracket | Shimano BSA 68 |
| Shifters | Shimano GRX 400, 10-speed |
| Front Derailleur | Shimano GRX 400 |
| Rear Derailleur | Shimano GRX 400, Shadow RD+ |
| Rear Cogs | Shimano HG500, 11-32T, 10-speed |
| Number of Gears | 20 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano GRX 400 hydraulic disc, 160/160 mm RT30 centerlock rotors |
| Brake Levers | Shimano GRX 400 hydraulic disc |
| Rims | GXD 1.0, 28h, 23 mm internal width, tubeless ready |
| Front Hub | Shimano TC500, 12 x 100 mm Center Lock |
| Rear Hub | Shimano TC500, 12 x 142 mm Center Lock |
| Wheel Size | 700c |
| Tires | WTB Riddler TCS Light, 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, 31.8, 7 deg. |
| Seat Post | Cannondale 3, 6061 alloy, 27.2 x 350 mm |
| Saddle | Selle Royal SRX Open |
| Pedals | Not included |
| Headset | Integrated, 1-1/8 to 1-1/2 in. |
| Chain | Shimano HG54, 10-speed |
| Weight | Unavailable |
| Gender | Unisex |
Cannondale Bikes (254848)
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Height Range | 4'10'' - 5'5'' | 5'3'' - 5'9'' | 5'7'' - 6'1'' | 5'10'' - 6'4'' | 6'3'' - 6'8'' |
| Reach | 36.8 | 37.7 | 38.5 | 39.4 | 40.2 |
| Stack | 51.8 | 54.9 | 57.9 | 61 | 64 |
| Effective Top Tube | 53.3 | 54.4 | 55.7 | 57.2 | 58.7 |
| Seat Tube Center-Top | 41 | 45.8 | 50.5 | 55.3 | 60 |
| Standover Height | 70.3 | 74.4 | 78.4 | 82.4 | 86.4 |
| Head Tube Length | 8.6 | 11.5 | 14.7 | 18 | 21.2 |
| Head Tube Angle (degrees) | 70 | 71 | 71 | 71 | 71 |
| Seat Tube Angle (degrees) | 71.8 | 71.8 | 71.8 | 71.8 | 71.8 |
| Bottom Bracket Height | 28 | 28.4 | 28.4 | 28.4 | 28.4 |
| Wheelbase | 101.6 | 102.7 | 104.5 | 106.5 | 108.3 |
| Chainstay | 43.5 | 43.5 | 43.5 | 43.5 | 43.5 |
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.
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Customer Images
Location:Arvada, CO
Age:35–44
Weight:175–200 lbs.
Height:5'6"
Experience Level:Beginner
Riding Frequency:Multiple times per week
8 months ago
My First Gravel Bike - Love this bike
Yes , I recommend this product
I have always had very inexpensive mountain bikes and recently became aware of Gravel Bikes. I wanted something more light weight like a road bike, but also with some ability to trek around on dirt. Viola - the gravel bike. This purchase was my first gravel bike and also my most expensive foray into a bike. After much research and test rides, I settled on the Cannondale Topstone 2 GRX 2x. This bike has been awesome so far and makes me want to go ride everyday. While not a carbon frame, the bike frame still feels very light and I can actually keep up with my boyfriend on his road bike. If you want a gravel bike with very good components, I recommend this Topstone. Also, REI made it super easy to decide as they let you test ride it and then get the bike set up after purchase.
Age:35–44
Weight:175–200 lbs.
Height:5'6"
Experience Level:Beginner
Riding Frequency:Multiple times per week