Previously own, barely used and in excellent condition.
Batribike Sigma 20" Ultra Low-Step Folding Electric Bike
Built around a 35cm Alloy folding frame, designed with an ultra low-step geometry making it very easy to mount for any age group or height. 
Posessing a very nimble riding feel thanks to it's 20" wheels, the Sigma really comes to life in congested built up areas. Featuring a 7 speed Shimano derailleur gearing system to tackle the odd incline and compromnising terrain, supported by responsive yet simplistic V-Type brakes.
Specifications
MOTOR
250W Front Hub mounted
Promovec Motor with 3 year Warranty
BRAKES
Tektro V brakes front and rear
Bell incorporated into left brake lever
WEIGHT of BATTERY
Eco Battery - 2.8 kg | 6.2 lbs
Standard Battery 3.2 kg | 7 lbs
Extended Duty - 4.2 kg | 9.3 lbs
POWER LEVELS
LED - 5 Levels (Speed related)
Mini LCD - 4 Levels (Power related)
Centre LCD - 5 Levels (Power related)
LIGHTS
Front - System powered LED light
Rear - LED light incorporated into
battery (Always on)
DIMENSIONS 2
Saddle Height MIN - 72 cm | 28.4 ins
Saddle Height MAX - 101 cm | 39.8 ins
Step-Through MIN - 24 cm | 9.5 ins
BATTERY OPTIONS
Eco - 8.8 Ah | 320 Wh
Standard - 11 Ah | 400 Wh
RANGE 
Eco - 30-68 km | 19-42 miles
Standard - 38-85 km | 24-52 miles
Distances tested with 75 kg rider on level ground with no wind.
(SUBJECT TO CHANGE WITHOUT NOTICE)
GEARS
7 Speed Shimano Nexus Hub Gears
with Twist Type Gear Selector
WEIGHT of BIKE
17.9 kg (39.5 lbs) without battery
21.1 kg (46.5 lbs) with Standard
Battery
LOADING
Rider & Luggage 120 kg | 18 st 12 lbs
Rack - 25 kg | 55 lbs
CHARGE TIME
4 to 6 hours from flat
<2A Charge Current
DIMENSIONS 1
Overall Length - 155 cm | 61 ins
Height - 106 cm | 41.7 ins
Width - 51 cm | 20.1 ins
DIMENSIONS 3
Frame Size - 35 cm | 13.8 ins
Wheel Size - 20 ins
Wheelbase - 105 cm | 41.3 ins
WARRANTY
3 Months