Cannondale Topstone Neo Carbon 3 Lefty Electric Bike - 2021
An e-gravel bike with real suspension for rough-road capability, the fun-loving Cannondale Topstone Neo Carbon 3 Lefty e-bike is built to get our and go and farther than you thought possible.
Key Details
- Equipped with a 250W Bosch Performance Line CX motor for torque of up to 85 Nm, assist up to 20 mph and endless fun
- Ready for adventure, a removable Bosch PowerTube 500Wh downtube battery delivers a range of up to 109 mi. (176 km)
- Bosch Purion display provides all of your essential riding information at the touch of a button, while keeping both hands securely on the handlebar
- Lefty Oliver suspension fork offers 30 mm of smooth, bump-taming suspension and a stiff, precise-handling structure, so you can push it harder and ride smoother
- KingPin suspension system offers up to 30 mm of bump-smoothing suspension, without the weight and complexity of a shock or linkages
- Thru-axle pivot locks the left and right seat-stays together, preventing independent rotation for a solid feel and instantaneous response
- Suspension and overall frame ride-feel is custom-tuned by size using different carbon layup and different tube dimensions, so each size is dialed to the rider
- Endurance fit offers a balanced riding position: upright enough for long-haul comfort and control on technical terrain, yet still low and forward for speedy efficiency
- OutFront steering geometry keeps the steering light and agile, while positioning the wheel further in front of the rider for stability and confidence
- Fully fender ready (fenders not included); removable fender bridge on the rear stays is there when you need it and gone when you don't
- Internally routed 27.2 dropper post compatible (dropper not included)
- Pedals not included
- Closeout
- 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
- An additional year of free adjustments on e-bikes
- 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 electric bicycles sold at REI include free adjustments for the defined period (one year after purchase date for non-members, or two years for REI Co-op Members)—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation, chain lubrication and e-bike firmware updates. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
UL2849 certified
| Best Use | Gravel Cycling Road Cycling |
|---|---|
| E-Bike Classification | Class 1: pedal assist up to 20 mph |
| Motor | Bosch Performance Line CX 250W |
| Motor Type | Mid-Drive |
| Motor Torque (Nm) | 85 Newton meters |
| Battery Type | Lithium Ion |
| Battery Capacity (Wh) | 500 watt hours |
| Battery Removable | Yes |
| Charge Time (hrs) | 4.5 hours |
| Pedal Assist Range | 109 miles |
| Frame | BallisTec Carbon Frame, removable downtube battery, Kingpin suspension system, 12 x 148 mm thru axle, dropper post compatible |
| Bike Suspension | Full Suspension |
| Fork | Lefty Oliver, 30 mm travel, Chamber Damper with All-Over tune, ISO High-Ride air spring, tapered steerer, 650b, 55 mm offset |
| Fork Travel | 30 millimeters |
| Crankset | FSA Bosch E-Bike, FSA Megatooth, 42T |
| Shifters | Shimano GRX 600, 1 x 11 |
| Rear Derailleur | Shimano GRX 812, Shadow RD+ |
| Rear Cogs | Shimano SLX, 11-42T, 11-speed |
| Number of Gears | 11 gear(s) |
| Brake Type | Hydraulic Disc Brake |
| Brakes | Shimano GRX hydraulic disc, 180/160 mm RT56 rotors |
| Brake Levers | Shimano GRX hydraulic disc |
| Rims | WTB ST i23 TCS, 28h, tubeless ready |
| Front Hub | Lefty 50 |
| Rear Hub | Formula cartridge bearing, 12 x 148 mm thru-axle |
| Wheel Size | 650b |
| Tires | WTB Resolute, 650b x 42 mm, tubeless ready |
| Tire Width | 42 millimeters |
| Handlebar Shape | Drop Bar |
| Handlebar | Cannondale 3, butted 6061 alloy, 16 deg. flare drop |
| Stem | Cannondale 2, 6061 alloy, 31.8 mm, 7 deg. |
| Seat Post | Promax SP-2032, alloy, 27.2 mm |
| Saddle | Fabric Scoop Shallow Sport, steel rails |
| Pedals | Not included |
| Headset | Integrated, 1-1/2 lower to 1-1/8 in. upper, 25 mm alloy top cap |
| Chain | KMC e-11 EPT, 11-speed |
| Weight | 39 lbs. 11.2 oz. |
| Bike Weight | Bike weight is based on median size, as sold, or the average of two median sizes. |
| Gender | Unisex |
| S | M | L | XL | |
|---|---|---|---|---|
| Height Range | 5'4" - 5'9" | 5'7" - 6'1" | 5'11" - 6'4" | 6'3" - 6'8" |
| Reach | 37.7 | 38.7 | 39.4 | 40.2 |
| Stack | 54.9 | 57.5 | 61.0 | 64.0 |
| Effective Top Tube | 53.4 | 55.2 | 56.9 | 58.6 |
| Seat Tube Center-Top | 41.0 | 44.0 | 50.0 | 55.0 |
| Standover Height | 73.3 | 76.3 | 81.4 | 85.8 |
| Head Tube Length | 12.7 | 15.8 | 19.5 | 22.9 |
| Head Tube Angle (degrees) | 71 | 71 | 71 | 71 |
| Seat Tube Angle (degrees) | 74 | 74 | 74 | 74 |
| Bottom Bracket Height | 27.9 | 28.2 | 28.2 | 28.4 |
| Wheelbase | 101.8 | 103.8 | 105.7 | 107.6 |
| Chainstay | 42 | 42 | 42 | 42 |
| Fork Offset | 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.
Write a Review
Adding a review will require a valid email for verification
Customer Images
incorrect product description
Listed as class 3 but was given a class 1 bike (motor cuts out at 20mph instead of 28mph). Ultimately just an incorrect product description and REI employees were super helpful, but it was a pain and took several days of calls and taking the bike back to REIs shop twice to get to the bottom of why I’d received a Class 1 bike. REI isn’t able to provide the Class 3 version, but if you’re ok with the 20mph cutoff it’s a nice bike.
If you can have only one bike this is ti
Best bike ever have. comfortable ride, exceptional handling excellent on the road and nice on dirt
Not a Class 3 ebike
This is not a class 3 ebike. The electric assist cuts out at around 19 mph, instead of the 28 mph advertised. It's a pretty cool bike, but it's far less useful as a class 1.
Pedals
What pedals do you all have installed in this bike? Thanks.




