The Zephyr CD

an exceptionally light foldable bike
with chain drive motor and hidden battery

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This product is now replaced by the Zephyr-CDN.
This page is kept for reference only.

The Zephyr-CD: a light foldable bike with chain drive.
Good full suspension (front and rear), 7-speed, light and stiff alloy frame, easy to fold make this a good choice for climbing hills.

The Zephyr-CD Chain Drive is best if:
- You live in a hilly area
- You weigh more than 100kgs

Only £675.

Why choose a chain drive?
A hub motor can only deliver around 20Nm torque - fine for flat roads but on steep hills, the motor will slow down and output power will drop rapidly.
So if you want to ride hills, a chain drive bike is a must.
By choosing the best gear to suit your terrain, the motor will contine running at high speed, maintaining maximum power output - and if you want to use just the throttle without pedalling, the Zephyr CD will do this perfectly.

Easy to fold
Push the safety latch forward to unlock the lever.
Pull the silver lever out to unlock the frame. The Zephyr CD will fold in halves in seconds.
To fold the handlebars, rotate the safety sleeve to free the lock lever.
Pull out the lock lever. The handlebars can now be folded down.

Dimensions when folded:
The Zephyr, when folded, measures
about 95cm (L) x 70cm (H) x 55cm.

Overall size:165cm x 112cm
Saddle height (in seam):76cm-99cm adjustable
Handlebars:68cm overall
Wheel size:20 inches
Tyres:5cm wide (20in by 1.95in)
Easy controls
The Zephyr-CD has both throttle and pedal assist.
To turn on the electrics, press the middle button labelled MODE to the left of the LCD display on the left handlebar.
There are 5 level of assistance, 1 provides the least assistance, 5 the highest.
Press the up and down button to select the desired level.
The 7 gears are controlled by your right thumb.
Gear 1 is for steepest hills, gear 7 for fastest speed.
As well as pedal assist, the Zephyr CD has a throttle on the right grip. Start pedalling or use the throttle (by simply twisting the right twist grip gently down towards you), the motor will kick in and the bike will woosh you along nicely - the motor is very quiet.
You can go up more or less any hill.
The bike is also very pleasant to pedal with no power.
This bike has been given an EN15194 certificate.
Maximum speed is 15mph and computer controlled.

zephyr CD easily folded

Image gallery - Zephyr-CD

Click on any image to start slideshow

Main features

  • delivered 95% built, ride away in minutes
  • top brand proven components
  • One cable system
  • fully accessorized
  • slimline discreet sealed battery — bike doesn't look electric
  • fat 1.95in Kenda tyres for comfortable commuting
  • mechanical components widely available
  • mechanical components widely available
  • 5 levels of assistance, 20″ wheel, stainless spokes, folding frame
  • 7 speed Shimano gear system
  • easy twist throttle for fast get aways
  • 250W chain drive motor
  • Lishui 14A controller with soft start
  • King Meter J-LCD display
  • 36V 8AH Lithium-ion battery hidden inside frame
  • up to 20 miles on single charge, 30 with easy pedalling
  • 21 kgs – light enough to ride with no power
  • * At (maximum) 14A, the power output is about 400W.
    Power delivery is very gradual on the Zephyr-CD.
    However, this power is transmitted through chain and gears, you should squeeze the brake handles slightly to cut out the motor momentarily when changing gears to protect the derailleur.
    There is also this useful maneuver to change gear more smoothly: throttle up, stop pedalling, thottle down, change gear and throttle up again, very much like you would do with your car.

Other features

  • no need for tax, insurance or DVLA registration
  • clean energy, costs less than 0.1p per mile
  • UK and European compliant
  • for riders 14+, 5ft3 to 6ft

Hidden battery

  • The battery is hidden inside the frame
  • Remove two bolts to reveal the battery compartment
  • You can then unplug the battery but you can only charge the battery using the charging socket
  • The charging socket is at the bottom end of the seat tube, left side of the frame (covered with rubber plug)
  • Specifications

    • 36Volts 8AH Lithium battery
    • Maximum speed 15 miles per hour
    • Dual control: pedal assist and twist grip throttle
    • range: 20-30 miles on flat roads with throttle control, more with pedal assist
    • 20in wheels, suitable for average riders 5ft3 to 6ft
    • Aluminum frame
    • Sporty 7-speed Shimano Index Shift
    • Motor: chain drive brushless motor rated 250W
    • Brakes: full disc brakes, front and rear
    • Suspension: full suspension, front and rear
    • Saddle: mens sport style
    • Tyres: Kenda 20″ by 1.95″
    • Battery charger for UK mains
    • Weight (including all accessories): 21kgs
    • bell and lights (the pictures didn't show rear light, mounted on seat post)
    • Guarantee: 1 year parts and labour, excluding consumables
    The J-LCD Panel displays :
    Choose display in miles or km

    Battery Charge
    Local Time
    5 Motor Assistance Levels