As with most projects; this started as with a spares/repairs purchase off eBay.
The original listing was for two bicycle frames, both fitted with 80cc 2-stroke petrol engines.
After much cussing, the engine was fired up but a seized clutch caused the drive chain to snap.
The conversion kit came with a 1000W rear hub motor prefitted to the wheel, new freewheel gear cassette, 48V motor controller, display, throttle, pedal assist sensor (PAS) and brake levers/cut off switches.
The battery and charger was a separate purchase; opting for a 13Ah capacity as a balance between cost and capacity.
Cost for the motor/controller set was £ 207.99 and the cost for the battery and charger was £ 210.99
The conversion process is relatively simple and can be completed in a single day. All you need to do is swap your existing rear wheel for the new motor, mount the controller, throttle and PAS, mount the battery and wire it all up.
After that it’s then the case of modifying the bike to increase the safety.
The modifications carried out includes:
- Front & Rear lights
- Horn
- Waterproof connectors (IP68)
- Torque arm
- Custom 3D printed light brackets
- Rear mudguard
- Battery splash guard
Long Term Review
So far it has completed over 100 miles and the largest problem has been with me as the rider. The bike is fast – capable of 30 mph with no pedalling – it is also heavy, the motor and battery easily add over 10 kg of mass.
Not only does this mean that you’ll burn through brake pads very fast, it also means that you need to adjust your riding style. Once you hone this skill, the bike becomes a dream to ride.
As a commuter to work, it’s faster than sitting in traffic and far more fun. It also serves well for popping to the shops – the journey back with a rucksack full of beer is effortless.
However, once you get used to the power, you are left craving for more…