Cannondale Synapse Neo E-Bike Review

Written by: Kazim Ladimeji | July 21, 2026 Time to read 6 min

The Cannondale Synapse Neo is one of the most exciting premium electric endurance road bikes on the market. Combining Cannondale’s renowned Synapse comfort with Bosch’s latest Performance Line Sprint motor, it promises long-distance capability, impressive hill climbing and enough assistance to keep pace with fast group rides without sacrificing the feel of a proper road bike.

Photo by <a href="https://unsplash.com/@reskp?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Jametlene Reskp</a> on <a href="https://unsplash.com/photos/a-large-building-with-steps-leading-up-to-it-QvD0Ix81Uyk?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Unsplash</a>

More about the Author: Kazim Ladimeji

Kazim is a UK-based cyclist and writer who discovered his passion for riding during lockdown six years ago and hasn’t looked back since. He now rides around 100 miles a week, exploring road and light gravel routes from his base in the Cotswolds, a cycling paradise. When he’s not riding or writing about e-Bike trails in the US, he’s exploring cafés, cooking, and keeping busy as a soccer dad

Super 73 ZX

Cannondale has built the Synapse’s reputation over many years as one of the best endurance road bikes available. Rather than chasing outright race-bike performance, the Synapse has always prioritized comfort, stability and efficiency over long distances, making it a favorite for sportive riders and all-day adventures.


The Synapse Neo takes that proven formula and adds Bosch’s latest lightweight Performance Line Sprint motor, giving riders extra speed and climbing assistance while retaining the design ethos of a premium carbon road bike.


In this review, I look at the Cannondale Synapse Neo’s performance, motor, battery range, comfort, hill climbing ability and who I think will get the most from this premium electric road bike.



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What is the Cannondale Synapse Neo?

The Cannondale Synapse Neo is a premium electric endurance road bike based on Cannondale’s award-winning Synapse platform. From my experience of riding both on and alongside the conventional Synapse endurance bike, it’s easily fast enough for the typical weekend smash-fest, even though it isn’t designed to be an outright race machine. It’s also noticeably more comfortable over long distances than an aggressive road bike, fulfilling its endurance-bike credentials.

Key Specifications

  • Frame: Series 2 carbon fibre frame with integrated battery
  • Motor: Bosch Performance Line Sprint mid-drive motor
  • Motor Torque: 55 Nm
  • Maximum Assistance: Up to 28 mph (45 km/h) on US Class 3 models; UK/EU versions are limited to local legal assistance speeds
  • Peak Power: Up to 600 W
  • Battery: Bosch Compact PowerTube 400 Wh integrated battery
  • Optional Range Extender: 250 Wh Bosch PowerMore range extender
  • Estimated Range: Up to approximately 150 km (93 miles) in Eco mode, depending on rider weight, terrain and assistance level
  • Tyre Clearance: Up to 42 mm
  • Drivetrain: Shimano 2x12-speed (specification varies by model)
  • Weight: Approximately 18.5-19 kg (depending on size and specification)

What motor does the Cannondale Synapse Neo have?


The Cannondale Synapse Neo is powered by the Bosch Performance Line Sprint motor, delivering up to 55 Nm of torque and 600 watts of peak assistance, with support all the way up to 28 mph on US Class 3 models.

This powerful mid-drive motor offers excellent hill-climbing ability, while the 28 mph assistance means you’ll have no problem keeping pace with fast conventional road bike group rides in the US. 

Once the motor stops helping, you're left pedalling an 18 kg bike under your own steam, which makes it much harder to stay with a fast group. I've seen exactly that happen on club rides!

Is the Cannondale Synapse Neo a good long-distance electric bike?


The integrated Bosch 400 Wh battery provides an impressive estimated range of up to 93 miles in Eco mode. What I particularly like is Bosch’s intelligent range estimator, which continuously updates your remaining range based on battery level, assistance mode, rider weight, terrain and speed.

You can even enter planned ride details before setting off to obtain realistic range estimates, making it much easier to plan charging stops on long-distance or multi-day rides.

Bosch also offers an optional 250 Wh PowerMore Range Extender, significantly increasing overall range for riders tackling century rides or multi-day bikepacking trips.

Another standout feature is the Shimano Ultegra Di2 R8150 12-speed groupset, which provides a wide gear range for both steep climbs and fast cruising on flatter roads. Combined with the motor assistance, it makes the Synapse Neo an outstanding endurance machine.

Overall, I’d say the Cannondale Synapse Neo is an excellent long-distance electric road bike.

generic road bike


Who is the Cannondale Synapse Neo designed for?


This is an interesting one for me. The Synapse Neo All Road is marketed towards:


  • Long-distance sportive riders
  • Weekend endurance cyclists
  • Commuters covering 20-80 km


However, if I were planning long endurance rides that included significant gravel riding or rough tracks, I probably wouldn’t choose the Synapse Neo because of its 42 mm tire clearance.

From experience, 42 mm is about the minimum tire width I’d want for spending all day riding rough roads and gravel. Even events like Unbound have seen average tire widths increase from around 40 mm to 45-50 mm over recent years.

Personally, if I were buying an electric bike specifically for long mixed-surface endurance rides, I’d lean towards a dedicated electric gravel bike with 50 mm tire clearance. My wrists, lower back and sit bones would certainly thank me after eight hours in the saddle. When doing endurance rides, I am always envious of folks on fatter-tire bikes who have sacrificed speed for comfort and look all the better for it.

That’s simply my preference based on my own riding experience.

The Synapse Neo is also aimed at:


  • Older riders wanting to keep pace with faster groups
  • Cyclists returning from injury
  • Riders living in steep or hilly areas with rough road surfaces


For these riders, I think the Synapse Neo is an excellent choice. It delivers sporty road-bike performance while placing a much greater emphasis on comfort.

I regularly ride with two electric endurance bike owners who fit this exact profile. One rides an Orbea, and what both of them love is that their bikes are stealth e-bikes. At first glance, they simply look like high-end conventional road bikes.

Looking at the Synapse Neo, I’d say it achieves exactly the same objective. It looks like a premium carbon endurance bike rather than an obvious electric bike.

That’s surprisingly important on club rides where you still want to blend into the group. Although, when they come flying past you halfway up a climb while you’re hanging on for dear life, their secret isn’t much of a secret anymore!

Frequently Asked Questions

Is the Cannondale Synapse Neo good for hills?

Yes. The Bosch Performance Line Sprint motor delivers 55 Nm of torque, which is more than enough for steep road climbs and rolling terrain. Combined with Shimano’s wide 12-speed gearing, it makes climbing significantly easier while still feeling like you’re riding a performance road bike.

Is the Cannondale Synapse Neo good for long-distance rides?

Absolutely. The endurance geometry, carbon frame, Bosch motor and optional 250 Wh range extender make it an excellent choice for long road rides and rough roads. Personally, for rides involving significant gravel, I’d prefer a bike with a larger 45-50 mm tyre clearance for additional comfort.

How much does the Cannondale Synapse Neo cost?

At just over $9,000, the Synapse Neo sits firmly in the premium e-road bike category, and its pricing reflects that specification. As it has now been on the market for around a year, more second-hand models are beginning to appear, potentially offering better value for riders looking to buy used.

Key Takeaways


  1. Its 55 Nm motor, 400 Wh battery and optional range extender make it an excellent long-distance electric road bike.
  2. It excels on roads, rough roads and sportive rides, although dedicated gravel riders may prefer greater than 42 mm tyre clearance.
  3. Older riders, returning cyclists and riders wanting to keep pace with faster groups are likely to get the most from the Synapse Neo.




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