Cytronex Electric Powered Cannondale Synapse


The Ultimate High Speed Electric Road Bike

At 14.8Kg the electric Cytronex Powered Cannondale Synapse has a superb power to weight ratio and excellent equipment, including Shimano Tiagra gears and the new Busch & Muller Cyo 60 lux LED headlight.

If you want to get there fast, this electric Cytronex conversion is the e-bike for you!

Fitted with Cytronex Power electric assistance for multi geared bikes, when you want electric assistance just press the right hand Boost button. You can either select full electric power on the left or low speed for steep hills, cycle paths or sightseeing. Whenever you depress the rear brake lever or push the Boost button again the electric power stops immediately. For safety you need to press the Boost button to start again.

The Cytronex electric motor will stop and freewheel whenever you stop pedalling, resuming as soon as you start to pedal again.


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  • Frame: Synapse Aluminum
  • Fork: Cannondale Synapse S.A.V.E. Ultra
  • Front Derailleur: Shimano Tiagra triple
  • Rear Derailleur: Shimano Tiagra 9 speed
  • Shifters: Shimano R440
  • Chainset: Shimano Tiagra
  • Chainrings: 30/39/50 teeth
  • Bottom Bracket: Shimano Tiagra
  • Cassette: SRAM PG-950 9 speed 12-26 tooth range
  • Front and Rear Brake: Shimano R450
  • Brake Levers: Cannondale Comfort
  • Handlebars: Cannondale C3 flat
  • Headset: Cannondale Synapse
  • Rim front: DT Swiss RR 1.2 aero, rear: Shimano R500A
  • Front Hub: Cytronex electric hub motor
  • Rear Hub: Shimano R500A
  • Spokes: Shimano R500A rear, DT Swiss front
  • Front and Rear Tyre: Vittoria Rubino, 700x25c
  • Light kit: Busch & Muller LED, front – 60 lux Cyo, rear Seculite
  • Computer: Sigma Topline BC1009
  • Battery: Cytronex 4Ah high discharge, quick charge NiMh pack with switching regulator for efficient, optimal lighting power
  • Charger: Cytronex Electric Smart Charger, 1.5 hour full charge time
  • Control kit: Cytronex thumb switches with two speed switch and Boost button
  • Weight: 14.8Kg / 32½ lb (including battery)

Want to keep your own bicycle? - why not sign up for details of the forthcoming Cytronex C1 electric bicycle conversion kit.

Cytronex Electric Powered Cannondale Synapse
Click here if you are purchasing via the Cycle to Work Scheme (find out more)