Ebike Cannondale Synapse Neo Allroad 1 2025: test review, pros, cons, problems, opinions, everything you (really) need to know
Ebike Cannondale Synapse Neo Allroad 1 2025: test review, pros, cons, problems, opinions, everything you (really) need to know
Cannondale Synapse Neo Allroad 1 2025 E-bike: Technical Analysis, Performance, and Versatility
The Cannondale Synapse Neo Allroad 1 2025 is an electric bicycle positioned in the growing segment of high-performance e-gravel bikes, offering a balance between the efficiency of road bikes and the versatility of all-road models. Designed based on the Synapse endurance platform, it integrates a light yet powerful pedal-assist system to tackle both asphalt and light gravel routes. The following analysis provides a detailed investigation of this model's specifications, performance, and market position.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Platform, Performance, and Range
The Synapse Neo Allroad 1 is conceived as an "adventurous exploration E-bike" (as defined by the manufacturer), equipped to handle a wide variety of surfaces.
The heart of the system is the Bosch Performance Line SX motor, known as a light-assist system characterized by low weight (approx. 2 kg) and a smooth, natural power delivery. The motor provides a maximum torque of 55 Nm and a peak power output of up to 600 Watts, supporting high pedaling cadences.
Power is supplied by an integrated Bosch Compact Powertube 400 Wh battery in the downtube. This capacity is optimized to keep the overall bicycle weight low, which is estimated to be in the 12-13 kg range. The range is significant for the light-assist category. Optimal manufacturer estimates for the Allroad 2 model (which shares the system) indicate a range that can reach up to 300 km in Eco mode on flat roads, although a more conservative, but still ample, range should be expected in mixed or off-road use. For extremely long rides, an optional 250 Wh Range Extender (Bosch PowerMore) is available.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Build Quality
The build quality of the Synapse Neo Allroad 1 leverages Cannondale's expertise in carbon fiber and system integration.
Materials: The frame and fork are constructed from Series 2 Carbon Fiber, an advanced build designed to optimize the stiffness-to-weight ratio while retaining the vibration-damping properties typical of the Synapse platform.
Finishing: The bike features a high degree of integration. The cable routing is fully internal (thanks in part to the Cannondale C1 Conceal stem) for a clean aesthetic and protection from external elements. The integration of the Bosch SX motor and battery is discreet, contributing to a high-end, traditional bicycle look.
Integrated Versatility: The frame includes discreet mounting points for fenders, a rear rack, and a kickstand, elements that underscore its all-road and touring vocation, distinguishing it from a purely sporty e-road bike.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Frame
The frame design is directly derived from the endurance Synapse, with adaptations for electrification and light gravel.
Geometry: The bicycle uses Cannondale's proven endurance geometry, which offers a more upright and less aggressive riding position compared to competition models (like the SuperSix EVO). This translates to greater comfort and stability over long distances.
Specific Technologies: The frame incorporates SAVE (Synapse Active Vibration Elimination) technology, which, through carefully designed flex zones (like the seatstays and dedicated seatpost), absorbs vertical shocks and road vibrations.
Tire Clearance: The all-road capability is ensured by the generous tire clearance, which allows the installation of tires up to 700c x 40mm (fitted as standard) or up to 45mm, enabling the use of more aggressive gravel tires.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Components
The Allroad 1 build is high-end, focusing on reliability and off-road functionality thanks to electronic and gravel-specific components.
Drivetrain: The groupset is the SRAM Force AXS XPLR 12-speed, an electronic wireless system specific to gravel. It uses a single chainring (1x) configuration (FSA Bosch E-bike 38T crankset) and a wide-range cassette (10-44T). This choice offers the simplicity of a clutch-equipped single chainring and extremely nimble gear ratios for the steepest off-road climbs.
Braking: The SRAM Force AXS hydraulic disc brakes guarantee consistent stopping power and excellent modulation, which is essential for control on both wet asphalt and gravel.
Wheels and Tires: The bike features Cannondale GXD10 alloy wheels and Vittoria Terreno Dry 700x40c tires—tubeless-ready rubber that offers a good balance between speed on asphalt and traction on dirt.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Comfort
Comfort is a fundamental characteristic of the Synapse platform and is amplified in this model:
Endurance Geometry: The less extreme riding position compared to racing models reduces fatigue in the back and neck during long rides.
SAVE Technology: The micro-vibration absorption by the frame and carbon seatpost (Cannondale 2 UD Carbon) is effective, improving ride quality on uneven surfaces.
Wider Tires: Using 40 mm (or up to 45 mm) tires at lower pressures contributes significantly to shock absorption and safety on rough terrain.
Cockpit Ergonomics: The flared drop handlebar ensures a more stable and comfortable grip off-road or during long descents.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Handling
The riding experience of the Synapse Neo Allroad 1 is defined by its all-road nature and the integration of the Bosch SX system.
Motor Feel: The Bosch SX is calibrated to offer assistance that is supportive but not overwhelming. The power delivery is smooth and quiet, mimicking the feel of riding a non-assisted bike as closely as possible, but with an added boost, especially on climbs and at high cadences.
Maneuverability: Despite the integrated motor and battery, the low weight and Series 2 carbon frame allow for precise handling. The setup is stable and secure, especially on descents and fast gravel sections.
Practical Versatility: The bike doesn't feel sluggish on asphalt (where the 40mm tires roll well) but is ready to tackle light trails and dirt roads, making it an excellent single performance e-bike for all types of roads.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Performance
Performance must be measured in terms of both speed and the ability to overcome obstacles and gradients.
Assisted Efficiency: With a torque of 55 Nm, the Bosch SX motor is not the most powerful on the market, but it is one of the most efficient in terms of power-to-weight ratio. The support is optimal for maintaining a high cruising speed on the road and tackling off-road climbs that would be prohibitive without assistance.
Unassisted Performance: When speeds exceed 25 km/h (the legal limit in Europe) or with assistance deactivated, the Bosch SX motor disengages smoothly, and pedal resistance is minimal. The light, aerodynamic frame allows for good speed maintenance, utilizing the efficiency of a carbon endurance bike.
Gearing: The 10-44T gear range of the SRAM AXS XPLR groupset is ideal for the varying gradients of gravel riding, ensuring an easy-to-spin gear for any slope.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Pros and Cons
Pros
Versatility and Integration: Excellent balance between an endurance road bike and light gravel, with a high level of aesthetic and functional integration (accessory mounts).
Bosch SX System: Light (2 kg), smooth, and powerful (600W peak) motor, ideal for natural and discreet assistance.
Comfort: Synapse geometry and SAVE technology provide superior comfort, amplified by the 40mm tires.
Electronic Components: Wireless SRAM Force AXS XPLR drivetrain, precise and reliable for all-road use.
Cons
Weight: Although it is a light E-bike, it does not achieve the extreme lightness of some light-assist models like the Pinarello Nytro (which uses the TQ-HPR50), placing it in a higher middle tier.
Base Range: The 400 Wh battery may not suffice for cyclists who prefer long bikepacking adventures with high assistance, making the purchase of the optional range extender almost mandatory.
Price: The list price of €6,999 is high, reflecting the quality of the carbon frame and electronic components.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Recommendations
Maintenance: Since the drivetrain is electronic (SRAM AXS), it is recommended to keep the firmware updated and regularly monitor the charge status of the shifting batteries.
Comfort Optimization: If primarily used on asphalt, 30-32 mm tires can be fitted to improve rolling efficiency. For more challenging gravel, utilize the 45 mm limit for maximum grip and comfort.
Range Extender: For those planning rides exceeding 100 km with significant elevation gain, purchasing the optional 250 Wh Bosch PowerMore battery is a worthwhile investment to eliminate range anxiety.
Cannondale Synapse Neo Allroad 1 2025 E-bike: Alternatives
The segment of light all-road E-bikes with mid-drive motors is competitive. The main alternatives are distinguished by their motor approach or frame design.
Specialized Turbo Creo 2 E5 Comp (or S-Works): Uses the proprietary Specialized SL 1.2 motor. It is a direct competitor in the light-assist category, often slightly lighter and focused on road/gravel efficiency.
Trek Domane+ SLR: Often equipped with the TQ-HPR50 motor and known for its IsoSpeed technology (decoupler system) that offers excellent rear comfort, positioning it as one of the most comfortable electric endurance bikes.
Pinarello Nytro E5 Gravel: A model that uses the TQ-HPR50 system, offering a gravel alternative with a focus on design and extreme lightness, typical of the Italian brand.
Orbea Gain M30/M20: Uses the Mahle X20 hub motor assistance system. While less powerful (55 Nm), it offers an even more discreet look, with lower weight in some builds, ideal for those seeking an aesthetic closer to a non-assisted bike.
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NDR: the photo does not refer to the specific bike being tested