Synch Super Monkey Pro Step Through Fat Tyre Electric Bike 250W

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£2,149.00
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Warranty: 2 Years

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Combining iconic retro design with effortless accessibility, the Super Monkey Step Through Pro 250W is the UK’s premier 2-seater electric bike. Featuring a low step-through frame alongside an extended bench seat, this versatile e-bike makes mounting seamless while offering ample space for a passenger or heavy luggage. Whether you are navigating busy city streets, tackling weekend family outings, or running daily errands, the Step Through Pro delivers a exceptionally stable, stylish, and comfortable ride across all UK road conditions.

The Super Monkey Step Through Pro 250W is a UK road-legal electric bike designed for two riders, featuring a low step-through alloy frame, an extended dual seat, and a powerful 250W Bafang rear hub motor. Delivering up to 40 miles of range per charge, it combines retro moped styling with modern e-bike technology, Tektro hydraulic disc brakes, and 20" x 4" fat tyres for superior comfort, stability, and control.

 

How is the frame size measured?

Most E-bikes are measured from the centre of the crank to the base of the seat post tube. However, some E-bike manufacturers may measure their bikes differently depending on their style. 

What is the right frame size for me?

This helpful guide will help you to find which size electric bike is best suited to you. If you would like a bit more information, don't hesitate to get in touch.

 

 

HYBRID ELECTRIC BIKES

MENS

Rider Height Recommended Hybrid Frame Size
Feet & Inches Centimetres Frame Size (inches) Frame Size (cm) Frame Size
4'10" - 5'2" 148cm - 158cm 13" - 15" 33 - 39 X-Small
5'2"" - 5'6"" 158cm - 168cm 15"-16" 38 - 44 Small
5'6" - 5' 10" 168cm - 178cm 17" - 18" 43 - 47 Medium
5'10" - 6'1" 178cm - 185cm 19" - 20" 48 - 52 Large
6'1" - 6'4" 185cm - 193cm 21" - 22" 53 - 57 X-Large
6'4" - 6'6" 193cm - 198cm 23" - 24" 58 - 61 XX-Large

 

WOMENS

Rider Height Recommended Women's Hybrid Frame Size
Feet & Inches Centimetres Frame Size (inches) Frame Size
4'10" - 5'2" 148cm - 158cm 13" - 14" X-Small
5'2"" - 5'6"" 158cm - 168cm 15" - 16" Small
5'6" - 5' 10" 168cm - 178cm 17" - 18" Medium
5'10" - 6'1" 178cm - 185cm 19"+ Large

 

VIEW ALL HYBRID E-BIKES

ELECTRIC MOUNTAIN BIKES

MENS 

Rider Height Recommended Mountain Frame Size
Feet & Inches Centimetres Frame Size (inches) Frame Size (cm) Frame Size
4'10" - 5'2" 148cm - 158cm 13" - 14" 33 - 37 X-Small
5'2"" - 5'6"" 158cm - 168cm 15" - 16" 38 - 42 Small
5'6" - 5' 10" 168cm - 178cm 17" - 18" 43 - 47 Medium
5'10" - 6'1" 178cm - 185cm 19" - 20" 48 - 52 Large
6'1" - 6'4" 185cm - 193cm 21" - 22" 53 - 57 X-Large
6'4" - 6'6" 193cm - 198cm 23" - 24" 58 - 61 XX-Large

 

WOMENS

Rider Height Recommended Women's Mountain Frame Size
Feet & Inches Centimetres Frame Size (inches) Frame Size
4'10" - 5'2" 148cm - 158cm 13" - 14" X-Small
5'2" - 5'6" 158cm - 168cm 15" - 16" Small
5'6" - 5' 10" 168cm - 178cm 17" - 18" Medium
5'10" - 6'1" 178cm - 185cm 19"+ Large

 

VIEW ALL EMTB's

COMMUTER ELECTRIC BIKES

MENS

Rider Height Suggested Commuter Bike Size
Feet & Inches Centimetres Frame Size (cm) Frame Size
4'10" - 5'0" 148cm - 152cm 47cm - 48cm XX-Small
5'0" - 5'3" 152cm - 160cm 49cm - 50cm X-Small
5'3" - 5'6" 160cm - 168cm 51cm - 53cm Small
5'6" - 5'9" 168cm - 175cm 54cm - 55cm Medium
5'9" - 6'0" 175cm - 183cm 56cm - 58cm Large
6'0" - 6'3" 183cm - 191cm 58cm - 60cm X-Large
6'3" - 6'6" 191cm - 198cm 61cm - 63cm XX-Large

 

WOMENS

Rider Height Suggested Women's Commuter Frame Size
Feet & Inches Centimetres Frame Size (cm) Frame Size
4'10" - 5'1" 147cm - 155cm 44cm - 46cm XX-Small
5'1" - 5'3" 155cm - 160cm 47cm - 49cm X-Small
5'3" - 5'5" 160cm - 165cm 50cm - 52cm Small
5'5" - 5'8" 165cm - 172cm 53cm - 55cm Medium
5'8" - 5'10" 172cm - 180cm 56cm - 57cm Large

 

VIEW ALL COMMUTER ELECTRIC BIKES

Built to Order in the UK 🇬🇧

Each Synch bike is hand-built to order at the Synch factory in Devon, ensuring top-tier craftsmanship and attention to detail.

All-Terrain 20" x 4" Puncture-Resistant Fat Tyres

Fitted with massive 20" x 4" fat tyres and front suspension forks, the ST Pro glides over harsh road imperfections, potholes, and gravel paths with minimal vibration. The wide contact patch delivers exceptional grip and cornering confidence across wet tarmac, canal towpaths, and light off-road trails alike.

UK-Manufactured Batteries

Powered by Danecca, a leading UK-based battery manufacturer in Silverstone, these high-performance batteries ensure exceptional reliability and longevity.

specifications

Battery and Range
35V 15AH Battery with Cadence - manufactured in UK. Charge time 4-5 hours.
** Range according to battery capacity. It is also dependent on the different riding conditions - terrain, rider weight, tyre pressure, headwind etc.
Motor
Bafang rear hub motor 250W
Sensor
Torque Sensor
Display
Light up LCD display, 5 levels of assist plus walk mode
Lights
(optional add on) LED front headlamp, Rear LED brake and tail light
Brakes
Tektro hydraulic brakes
Frame
Aluminium
Suspension Forks
Yes - front forks
Tyres
Synch (by Innova) puncture resistant tyres 20" x 4"
Gears
Shimano 7 speed gears
Max Speed
15.5MPH (250w)
Bike Weight
26kg (incl. battery)
Bike Dimensions
84cm Seat height
175cm Total length
Rider height: 5'4" - 6'6"
Load capacity: 120kg
Rider Height
Warranty
2 Year Frame & Forks, 1 Year Electrics
Delivery and Returns
FREE WHITE GLOVE DELIVERY ON ALL OUTRIGHT PURCHASES. Please note cycle to work orders will be required to pay £99 for delivery. Delivery 2-3 weeks. Cancelling your order: If you would like to cancel your order, please contact us immediately at info@ecobikecompany.com or on 0333 050 3189. Please include your order number when contacting us. If your order has not yet left the manufacturer's warehouse, we should be able to stop it shipping, and issue you a refund immediately. Please note –  when returning a product, it must be returned in ‘as new’ condition, with all components included, in their original packaging. There will be a charge for the return. Returns - Changed your mind If you change your mind after buying from us and want a refund, you have up to 14 days to let us know and have the goods returned to us. You will need to return the product to us before we can provide a refund. Eco Bike Co. can help arrange the return for a charge of £50 - a courier will be sent to pick it up from you & return it to the manufacturer.   Please note –  the 14 days return period is to allow you to examine the goods as you would in a shop. To obtain a full refund, the goods must be returned in an “as new” condition with all components included in their original packaging. “As new” condition is defined as unridden. Returns - Damages & Faulty We ask that you thoroughly inspect all items at the point of delivery. We advise you not to accept delivery of any damaged items. If you discover that an item has been damaged, please send clear photos of the damaged items to info@ecobikecompany.com so that we can open an insurance claim on your behalf. If your bike develops a fault through normal use (as outlined in the manufacturer's manual) you could be entitled to a repair or replacement as covered with the warranty. Please send through details of the fault to info@ecobikecompany.com and we will arrange the repair or replacement with the manufacturer. Please note –  any fault caused due to misuse of the bike is not covered by this policy. Please ensure you read the manufacturer's manual in detail before using your electric bike to avoid voiding your warranty.

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