Cannondale Synapse Neo Allroad 1 on testIs this still an E-gravel bike?

Jens Klötzer

 · 27.10.2025

The Cannondale Synapse Neo on test
Photo: Wolfgang Papp

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With the Cannondale Synapse Neo Allroad 1 e-gravel bike, the question arises as to whether it can be categorised as a typical gravel bike or whether the name "Allroad" is more indicative of a marathon road bike. Our test clarifies this.

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It is debatable whether the supported Cannondale Synapse Neo Allroad 1 passes as a "real" gravel bike. On the one hand, the voluminous tyres and the wide-ranging single drive are typical features. On the other hand, the manufacturer refers to the model as Allroad, and the model name Synapse also builds a bridge to the marathon racing bike of the same name. Alternatively, the bike is also available with a Shimano 2x12 drivetrain and narrow 30-millimetre tyres.

Traction limit of the Cannondale Synapse Neo Allroad 1 quickly reached

The wide-range single drive is one of the typical features of a gravel bike.Photo: Wolfgang PappThe wide-range single drive is one of the typical features of a gravel bike.

Although the low-profile tyres on the test bike are ten millimetres wider, they are not really suitable for off-road riding. The majority of the competition rolls on much wider and grippier tyres, which is an advantage off-road with a motor: the Cannondale reaches its traction limits early on. The promise of comfort is also essentially limited to the extremely upright riding position; in comparison, the Cannondale rides rather harshly. Even in this configuration, the Synapse Neo feels much more comfortable on paved terrain than on rough trails. There, the powerful Bosch motor rides best with higher cadences.

Power meter superfluous: The display provides a lot of riding data, including your own pedalling power, which the motor can measure preciselyPhoto: Wolfgang PappPower meter superfluous: The display provides a lot of riding data, including your own pedalling power, which the motor can measure precisely

More e-gravel bikes in the test

Quite a lot of power

It then pushes the bike gently but noticeably towards the 25 km/h mark in the lowest level of assistance, whereby you only have to pedal gently. On flat terrain, everything above Eco mode seems exaggerated.

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Bosch power on board the Cannondale.Photo: Wolfgang PappBosch power on board the Cannondale.

With the 400 Wh battery, triple-digit kilometres are easily possible. The drive really comes into its own on steep climbs, which literally become child's play in turbo mode. If you want to do sport with the Cannondale, you have to force yourself to throttle back the power unit or switch it off completely. However, the very upright riding position and the high weight put the brakes on a lot of fun. On the other hand, the 6999 euro bike is perfect for leisurely tours or relaxed commuting. The other Neo models cost 5899 euros (Allroad) or 8499 euros (Road).

Cannondale Synapse Neo Allroad 1 in detail

Cannondale Synapse Neo Allroad 1Photo: Wolfgang PappCannondale Synapse Neo Allroad 1
  • Price: 6,999 Euro >> available here
  • Weight of complete wheel: 14.3 kilos
  • Max. system weight: 150 kilos
  • Frame sizes: XS, S, M, L, XL

Geometry

  • Seat/top/head tube: 544/571/193 millimetres
  • Stack/Reach/STR: 643/396 millimetres/1.62
  • Stack+/Reach+/STR+: 702/559 millimetres/1.26
  • Wheelbase/caster: 1084/62 millimetres

Equipment

  • Drive/gear shift: SRAM Force XPLR AXS (1x12; 38, 10-44 t.)
  • Brakes: SRAM Force (160/160 mm)
  • Tyres: Vittoria Terreno Dry (40 mm)
  • Impellers: Cannondale GXD10
  • Impeller weights: 1,728/2,328 grammes

Motor

  • Model: Bosch Performance Line SX (mid-engine)
  • Top performance: 600 watts
  • Maximum torque: 55 Nm
  • Battery capacity: 400 Wh
  • Speed levels: 4

Advantages and disadvantages of the Cannondale Synapse Neo Allroad 1

Strengths and weaknesses of the Cannondale Synapse Neo Allroad 1Photo: TOUR
  • Plus: Powerful motor with long range, very high weight release
  • Minus: Relatively heavy, tyres with little traction off-road

Jens Klötzer is a qualified industrial engineer and TOUR's expert for components of all kinds: brakes, gears, wheels and tyres - Jens puts everything through its paces. He collects historic racing bikes and owns both a modern time trial bike and a titanium gravel touring bike. When travelling, he likes to explore unknown roads in Eastern Europe - on wide but fast tyres.

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