Built for chasing routes less traveled, navigating tricky courses and speeding up your commute, the Cannondale Topstone 1 Alloy is a capable and versatile gravel road bike.
- SmartForm C2 Alloy construction and full carbon fork are lightweight, durable and high-performance
- Gravel-specific Shimano GRX 800/600 11-speed shifting and Shimano GRX 400 hydraulic disc brakes offer excellent performance for rides that go beyond the pavement
- Balanced riding position is upright enough for comfort over the long haul and control on technical terrain, yet still low and forward enough for speedy efficiency
- 700c x 38 mm wide tires deliver comfort, grip and adventurous capability
- Mounts for 3 water bottles, plus mounts for top tube storage; multiple bottle cage positions on the downtube mount let you configure for big frame bags
- StraightShot internal cable routing; flat-mount disc
- 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 | Gravel Cycling Road Cycling |
|---|---|
| Frame | SmartForm C2 Alloy |
| Fork | Carbon, 1-1/8 to 1-1/4 in. steerer, 55 mm OutFront offset |
| Bike Suspension | No Suspension |
| Crankset | FSA Omega AGX+ alloy, 46/30T |
| Bottom Bracket | FSA cartridge |
| Shifters | Shimano GRX 600, 11-speed |
| Front Derailleur | Shimano GRX 800, braze-on |
| Rear Derailleur | Shimano GRX 810, Shadow RD+ |
| Rear Cogs | Shimano 105 11-speed, 11-34T |
| Number of Gears | 22 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano GRX 400, hydraulic disc, 160/160 mm RT54 rotors |
| Brake Levers | Shimano GRX 600 hydraulic disc |
| Rims | WTB ST i23 TCS, 28h |
| Front Hub | Formula cartridge bearing, 12 x 100 mm, thru axle, Centerlock disc |
| Rear Hub | Formula cartridge bearing, 12 x 142 mm thru axle, Centerlock disc |
| Wheel Size | 700c |
| Tires | Vittoria Terreno Zero, 700c x 38 mm |
| Tire Width | 38 millimeters |
| Handlebar Shape | Drop Bar |
| Handlebar | Cannondale 3, butted 6061 alloy, 16 deg. flare |
| Stem | Cannondale 3, 6061 alloy, 31.8 mm , 7 deg. |
| Seat Post | Cannondale 3, 6061 alloy, 27.2 x 350 mm |
| Saddle | Fabric Scoop Radius Sport, steel rails |
| Pedals | Not included |
| Headset | 1-1/8 to 1-1/4 in. tapered |
| Chain | KMC X11, 11-speed |
| Weight | 22 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 | |
|---|---|---|---|---|---|
| Height Range | 5'0" - 5'5" | 5'4" - 5'9" | 5'7" - 6'1" | 5'11" - 6'4" | 6'3" - 6'8" |
| Reach | 36.8 | 37.7 | 38.5 | 39.4 | 40.2 |
| Stack | 51.8 | 54.9 | 57.9 | 61.0 | 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 | 70.3 | 74.4 | 78.4 | 82.5 | 86.3 |
| Head Tube Length | 8.9 | 11.8 | 14.9 | 18.2 | 21.4 |
| Head Tube Angle (degrees) | 70 | 71 | 71 | 71 | 71 |
| Seat Tube Angle (degrees) | 73.1 | 73.1 | 73.1 | 73.1 | 73.1 |
| Bottom Bracket Height | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 |
| Wheelbase | 101.1 | 102.2 | 104.0 | 106.0 | 107.8 |
| Chainstay | 43.0 | 43.0 | 43.0 | 43.0 | 43.0 |
| 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.