Born to roll and roam with pure gravel goodness, the Cannondale Topstone Disc SE 105 bike has high-volume tires, confident rider position and sporty handling to smash out big miles on the back roads.
- Clean internal routing lets you add a 27.2mm dropper post (not included)
- Removable fender bridge bolts on when you want fenders
- Mounts for 3 water bottles and top-tube storage let you prepare to go long; multiple bottle cage positions on the down tube mount let you attach big frame bags
- SmartForm C2 alloy construction delivers a frame that's lightweight, efficient and oh-so-smooth
- Big tire clearance provides plenty of room for tires up to 42mm wide
- Full carbon fork with tapered steerer and 12mm thru-axle creates a light, comfortable and precise-steering front end
- OutFront steering geometry sports a slack head angle and 55mm fork rake for stability at speed, agility on mixed surfaces and confidence on multiday adventures
- 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 | Cycling |
|---|---|
| Frame | SmartForm C2 alloy |
| Fork | Cannondale Topstone disc, full carbon, 1-1/4 to 1-1/8 in. tapered steerer, 55mm offset, flat mount, 12 x 100 thru axle |
| Bike Suspension | No Suspension |
| Crankset | FSA Omega ME alloy, 46/30 |
| Bottom Bracket | FSA MegaExo |
| Shifters | Cannondale C3, butted 6061 alloy, 16° flare drop |
| Front Derailleur | Shimano 105, 31.8 clamp |
| Rear Derailleur | Shimano 105 7000 GS |
| Rear Cogs | Shimano 105, 11-34, 11-speed |
| Number of Gears | 22 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano 105 7070 hydraulic disc, 160/160mm RT56 rotors |
| Brake Levers | Shimano 105 7020 hydraulic disc |
| Rims | WTB ST i23 TCS, 28h, tubeless-ready |
| Front Hub | Formula RX-512 12 x 100 |
| Rear Hub | RX-142 12 x 142 |
| Wheel Size | 700c |
| Tires | WTB Nano TCS, 700 x 40c, tubeless-ready |
| Tire Width | 40 millimeters |
| Handlebar Shape | Drop Bar |
| Handlebar | Cannondale C3, butted 6061 alloy, 16° flare drop |
| Stem | Cannondale C3, 6061 alloy, 31.8, 7° |
| Seat Post | Cannondale C3, 6061 alloy, 27.2 x 350mm |
| Saddle | Fabric Scoop Radius Sport, steel rails |
| Pedals | Sold separately |
| Headset | Topstone Si, 25mm alloy top cap |
| Chain | KMC X11EL, 11-speed |
| Weight | 21 lbs. 14.56 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 | 64 |
| Effective Top Tube | 52.5 | 54.4 | 56.1 | 57.9 | 59.6 |
| Seat Tube Center-Top | 41 | 45.8 | 50.5 | 55.3 | 60 |
| 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 | 28.4 | 28.4 | 28.4 | 28.4 | 28.4 |
| Wheelbase | 101.1 | 102.2 | 104 | 106 | 107.8 |
| Chainstay | 43 | 43 | 43 | 43 | 43 |
| 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.