How Much Does a Do It Yourself Electric Bike Really Cost?
Thinking about building a Do It Yourself Electric Bike but not sure if it is actually worth the cost?
The answer is not as straightforward as most guides make it seem. From hidden expenses to performance trade-offs, there is a lot the sticker price does not tell you. Read on to find out exactly what you are signing up for, and how to get the best deal either way.
Most people expect to spend a couple of hundred pounds and call it done. Then the battery arrives separately. Then the installation. Then the bits your kit forgot to mention. Here is exactly what a DIY electric bike in the UK really costs, before you spend a single penny.
The Real Price Tag
e-Bike conversion kits start at just £205 for an entry-level rear wheel e-Bike conversion kit like our Sutto/Bafang 250W hub, smooth, quiet, and ideal for city commuting.
Step up to the Bafang 1000W BBSHD kit at £639.99 and you get serious hill-climbing performance.
Rather ride than build? Our ENGWE P20, one of the best folding electric bikes UK riders can find, is £1,199 with up to 100km of range and a maintenance-free carbon belt drive.
What Pushes Prices Up
Five things drive the cost of any electric bike:
- Motor wattage and type (hub vs. mid drive motor kits)
- Battery voltage and cell quality
- Frame and wheel compatibility
- Controller type (standard vs. sine-wave)
- DIY vs. professional installation
3 Rules for Picking Your Kit
Rule 1: Match Your Bike
Most 26", 27.5", and 700C frames work with our rear wheel e-Bike conversion kits. Bafang e-Bike conversion kit UK options, including the BBSHD, suit the standard 68–73mm bottom bracket found on most bikes.
Not sure if your frame qualifies? We offer a fit checker on every product page.
Rule 2: Know Your Wattage
250W is road-legal, quiet, and more than enough for flat city use. The Bafang BBSHD delivers 160Nm of torque for hills and heavy loads. The 5000W MTX is for private or off-road use only.
Rule 3: Think About Your Terrain
Urban rider? Keep it simple with the Sutto 250W from just £205, or the ENGWE P20 folding electric bike UK. Trail rider? The ENGWE M1's fat tyres, full suspension e-Bike UK design, and dual battery option make short work of any surface.
Top-Rated ElectroCity Kits and e-Bikes: Performance Worth Paying For
Not all electric bike kits and pre-built e-Bikes for sale in the UK are built equal. Here is how our most popular options stack up across the three factors that matter most to riders: speed and power, battery and range, and terrain suitability. Use this as your quick-reference guide before you buy.
|
Kit / Bike |
Speed & Power |
Battery & Range |
Best Terrain |
|
Sutto 250W Rear Hub Kit (£205) |
25–32 km/h, 45Nm torque |
30–60km depending on battery choice |
City, flat roads, light commuting |
|
Bafang 1000W BBSHD Kit (£639.99) |
Up to 55 km/h, 160Nm torque |
40–80km depending on battery choice |
Hilly routes, mixed terrain, heavy loads |
|
5000W MTX Sine Wave Kit (£499.99) |
Up to 60 mph, 110–150Nm torque |
72V 20–25Ah packs for extended rides |
Extreme off-road, private land only |
|
ENGWE P20 Folding E-Bike (£1,199) |
25 km/h, 42Nm torque |
Up to 100km on single charge |
Urban commuting, public transport friendly |
|
ENGWE M1 Fat-Tyre E-Bike (£1,099) |
25 km/h, 65Nm torque |
90km single / 170km dual battery |
All-terrain, trails, gravel, snow |
|
72v Trek MTB Pre-Built (£1,499.99) |
Up to 55 mph, 3000W power |
72V 20Ah Samsung battery |
Mountain trails, high-performance riding |
Easy to Install or Call a Pro?
- Sutto 250W: Beginner-friendly, 1–2 hours, basic tools needed.
- Bafang BBSHD Mid-drive Motor Kit UK: Moderate skill required. We recommend watching an install guide before you start.
- 5000W MTX Sine Wave: Expert-level build, high-voltage system, torque arm essential, hydraulic brakes required.
Not sure which level suits you? We are always happy to help you decide.
5-Year Ownership Costs
Beyond the sticker price, the total cost of ownership over five years tells the full story:
|
Kit / Bike |
Upfront |
Annual Running* |
Battery Replacement |
5-Year Total |
|
Sutto 250W Rear Hub Kit |
£205 |
~£90/yr |
~£280 |
~£935 |
|
Bafang 1000W BBSHD Kit |
£639.99 |
~£110/yr |
~£320 |
~£1,510 |
|
5000W MTX Sine Wave Kit |
£499.99 |
~£150/yr |
~£400 |
~£1,650 |
|
ENGWE P20 Folding e-Bike |
£1,199 |
~£130/yr |
~£300 |
~£2,149 |
|
ENGWE M1 Fat-Tyre e-Bike |
£1,099 |
~£160/yr |
~£350 |
~£2,249 |
|
72v Trek MTB (pre-built) |
£1,499.99 |
~£200/yr |
~£450 |
~£2,950 |
*Running costs include electricity, annual servicing, and tyres.
Costly Mistakes to Avoid
Avoid these common mistakes that cost riders time, money, and headaches:
- Skipping the torque arm on hub motors, as this causes axle dropout damage at higher wattage.
- Buying the cheapest battery cells, as Samsung, LG, or Panasonic cells last years longer.
- Forgetting to upgrade brakes, because your stopping power must match your new top speed.
- Mismatching wheel size, so always confirm compatibility before ordering e-Bike conversion kits.
- Ignoring UK road law, as 250W and 25 km/h is the legal limit for public roads.
Final Thoughts
Whether you are just starting out or ready to build something serious, there is an option at ElectroCity Bikes that fits your budget, your bike, and your riding style. From our beginner-friendly Sutto/Bafang 250W e-Bike conversion kit to our powerful 5000W MTX Sine Wave kit and ready-to-ride e-Bikes for sale in the UK, we have everything you need to get on the road for less than you think.
