Start with the bike
Frame style, wheel size, brakes and available mounting space decide what will fit cleanly.
E-bike conversion kits
Power Your Ride
Explore conversion kits, batteries, displays, controllers and fitting parts for bikes that deserve a second life. Choose a simple assisted setup for everyday riding or a stronger system for suitable private-land use.
Choose your power
250W, 350W, 500W and 750W
250W
350W
500W
750W
Quick note: For UK public roads, e-bike assist is generally limited to 250W rated output. Check current legal requirements before buying or using any kit.
250W options for road-focused builds
Batteries, displays and controllers in one place
Workshop advice before you order
Fit and feel
The best kit is the one that suits the bike, the rider and the route.
Wheel size, dropout spacing, brake type, battery position and how you ride all matter. We have reworked this page to make the choice feel clearer: start with the power level, then match the motor, battery, screen and fitting parts.
Choose the assist
Pick steady road assistance, extra hill support, or a private-land setup for heavier jobs.
Build the bundle
Pair the motor with the right battery, charger, display, controller and fitting hardware.
Shop by part
Find the part of the conversion you need
Use these cards for real Shopify collections such as hub motors, mid drives, batteries, displays, controllers and accessories.
Mid drives
Crank-mounted systems for riders who want balanced handling and climbing support.
Shop mid drives
Controllers
Replacement and upgrade controllers for tuning how the system delivers power.
Shop controllers
Accessories
Torque arms, brake sensors, cables, chargers and the smaller parts that make fitting easier.
Shop accessoriesConversion Kits
Most Frequently Bought Items
Browse our range of 250W road-legal kits, private-use off-road kits, batteries, displays, controllers and accessories. Each category is designed to make it easy to compare options and find the right setup.
Road assist
Bafang BBS01B 36V 250W Mid-Drive E-Bike Conversion Kit
£368.00
- Power
- 250W
- Best for
- Road-focused builds
- Includes
- Motor, display, controller
Light private-land assist
36V 13Ah Downtube E-Bike Battery – Varstrom
£220.00
- Power
- 36v 13Ah
- Best for
- Private-land use
- Includes
- Battery & charger
Private-land setup. Check suitability before buying.
Private-land power
Varstrom TSDZ2B 48V 500W Mid-Drive E-Bike Conversion Kit
£318.00
- Power
- 500W
- Best for
- Private-land use
- Includes
- Motor, display, controller
Private-land setup. Check suitability before buying.
Private-land torque
36V 15.6Ah Downtube E-Bike Battery – Varstrom
£245.00
- Power
- 750W
- Best for
- Private-land use
- Includes
- Motor, display, controller
Private-land setup. Check suitability before buying.
Battery
Add a battery
Show the battery packs and chargers that pair with your kits.
- Power
- Match kit
- Best for
- Range and fit dependent
- Includes
- Battery and charger
Cockpit control
52V 20Ah E-Bike Battery
£305.00
- Power
- Match kit
- Best for
- Control and settings
- Includes
- Display or control pad
Electronics
Add a controller
Use this card for controllers, looms and replacement electronics.
- Power
- Match kit
- Best for
- Power delivery
- Includes
- Controller and wiring
Fitting parts
48V 20Ah Downtube E-Bike Battery
£255.75
- Power
- Universal
- Best for
- Clean installation
- Includes
- Fitting parts
Private-land setups
More output where the bike is not being used on public roads
Some riders need more torque for land, work sites, yards or closed routes. This section keeps that message present without making the whole page feel like a warning notice.