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How we put this together: we have not ridden this bike ourselves. What follows is based on Cannondale’s published specifications and on independent reviews, which we link where we use their figures. Where a number is a manufacturer claim rather than a measured result, we say so. Read more about how we research.
The Cannondale Quick Neo SL 2 is a lightweight Class 1 electric fitness bike built around the Mahle ebikemotion X35 rear hub system. It looks and rides like an ordinary flat bar hybrid: the battery hides in the down tube, the motor sits in the rear hub, and the only clue is a button on the top tube.
That design comes with a trade. The battery is small, the assist is gentle rather than muscular, and there is no throttle. What follows is what Cannondale publishes, what independent testers measured, and where the two do not line up.
Who this bike is for
The Quick Neo SL 2 suits a specific rider: someone who enjoys pedaling, wants a modest boost against headwinds and short climbs, and values low weight over motor output.
- Riders who lift the bike onto a rack or up stairs. At around 35 pounds it is far lighter than a typical full power commuter, which is the main appeal of the lightweight electric bike category.
- Commuters riding under roughly 15 miles round trip on mostly flat ground.
- Fitness riders who want to keep working but flatten the hills.
It is a poor match for anyone who carries heavy loads, faces long climbs, or expects 40 plus miles of assist per charge. Those riders want a mid drive and a 500 to 700 Wh battery, which our roundup of electric bikes for commuting covers.
Key specifications
| Motor | Mahle ebikemotion X35 rear hub, 250 W nominal, three assist levels selected with one top tube button |
| Torque | 40 Nm (Mahle published figure) |
| Battery | 250 Wh, integrated in the down tube, not removable |
| Range extender | Optional; Bikerumor reported it lifts total capacity to 450 Wh |
| Claimed range | Up to 47 miles (75 km), a Cannondale claim, not a measured result |
| Measured range | 19.6 miles with 990 feet of climbing (OutdoorGearLab test) |
| Weight | 35.2 pounds in size large, weighed by OutdoorGearLab |
| Class and top speed | Class 1 pedal assist, cutoff at 20 mph in the US (25 km/h in Europe) |
| Frame and fork | SmartForm C3 alloy, full carbon fork, standard or Remixte dropped top tube |
| Sizes | SM, MD, LG, listed by 99 Spokes as suiting roughly 5 ft 0 in to 5 ft 6 in, 5 ft 4 in to 5 ft 10 in, and 5 ft 7 in to 6 ft 1 in |
| Brakes | Shimano hydraulic disc, 160 mm rotors front and rear |
| Drivetrain | 1×9 Shimano Altus, 38T crank, 11-36 cassette, no throttle |
| Tires | Schwalbe Energizer Plus 700x38c, Green Guard puncture protection |
| Warranty | Frame covered for the lifetime of the original registered owner under Cannondale’s limited warranty for pre 2026 models. Motor, battery, and display fall under the component maker’s warranty |
| US price | $2,400 at launch in 2020; $2,575 per OutdoorGearLab in February 2022. Surviving dealer listings sit near $2,400 to $2,500 and mostly show it unavailable |
What independent testing found
The hard numbers come from OutdoorGearLab’s tested review. Their size large sample weighed 35.2 pounds, the lightest bike in that group by a wide margin. On their standardized loop it covered 19.6 miles with 990 feet of climbing and finished last in the group for range. Against Cannondale’s claim of up to 47 miles, that is a gap worth planning around.
The same testers were blunt about the interface: mediocre display and controls, a top tube button that is hard to reach and read while riding, and a system they did not find intuitive. They also called it expensive.
A European test of the Remixte version by urbanbike.news weighed their size L sample at 14.9 kg and reported a charge time of about four hours. That tester praised the quiet motor and agile handling but criticized the missing front light despite pre installed wiring, the bulky taillight mount, a delicate charging plug, and an app that does not show battery state.
Cannondale’s own product page lists the 250 W Mahle X35 drive and the 250 Wh battery, and Mahle’s system page is the source of the 40 Nm figure. Treat any single range number as a starting point, not a promise; the variables that decide the result are covered in our guide to electric bike range.
Where it falls short
The assist is light. 40 Nm from a rear hub smooths a rolling commute but does not erase a steep hill. Riders expecting a 65 to 85 Nm mid drive will be let down.
The battery is small. 250 Wh is roughly half what many commuter e-bikes carry, and it is built into the frame, so no spare can be swapped in mid ride. Real range at high assist sits well below the 47 mile claim, as the 19.6 mile test result shows.
There is no throttle. Assist arrives only when the pedals turn and stops at 20 mph. That is normal for Class 1, but it rules the bike out for anyone who wants to pull away from a stop without pedaling.
The price is high for the hardware. Around $2,400 to $2,575 buys a Shimano Altus 9 speed drivetrain and entry level hydraulic brakes. The money goes into the frame, the carbon fork, and the low weight.
Availability is now limited. The Quick Neo SL no longer appears in Cannondale’s current US electric lineup, and dealer pages that still list it show it as unavailable. That leaves leftover stock or the used market, which makes battery health a real question.
Frequently asked questions
How far will it really go on one charge?
Cannondale claims up to 47 miles. OutdoorGearLab measured 19.6 miles with 990 feet of climbing. A realistic figure for hilly riding at high assist is closer to 20 miles, with more available on flat ground at the lowest setting or with the range extender fitted.
Is the Quick Neo SL 2 still being sold?
Not as a current model in the US. Cannondale’s electric lineup no longer lists the Quick Neo SL family, and remaining dealer listings show it as unavailable or special order. Anything found today is old stock or secondhand.
How do I choose between this and a heavier full power e-bike?
Weigh distance, climbing, and whether the bike has to be carried. Short flat routes plus stairs or a car rack favor a light bike like this one. Long routes, hills, or cargo favor a mid drive with a bigger battery.
What should owners expect to maintain?
Mechanically it is a standard hybrid: chain, cassette, brake pads, tires, and rotors, all covered in our electric bike maintenance guide. The electrical side is the exposure. Because the battery is integrated and the model is discontinued in the US, service depends on Mahle parts supply and a shop familiar with the X35 system.
The bottom line
The Quick Neo SL 2 does one thing genuinely well: it delivers quiet, subtle assistance on a bike that still feels and weighs like a normal hybrid. For a rider who wants help rather than a motorcycle, and who values a 35 pound bike that can be carried upstairs, that is rare.
The counterweight is equally real. Independent testing puts usable range far below the manufacturer claim, the controls drew consistent criticism, the parts spec is modest for the money, and the model has left Cannondale’s US range. Treat it as a light assist fitness bike worth buying at a discount, confirm battery condition and local service for the X35 system, and expect roughly 20 miles of assist rather than 47.