Your complete guide to electric mountain bikes
Find the electric mountain bike that matches your terrain, your riding style, and the adventures you want to unlock next.
An electric mountain bike changes the way you ride from the very first pedal stroke, giving you the power to explore more trails, climb with ease, and ride further than ever before. A great eMTB doesn’t just add power – it changes what’s possible on your rides, opening up climbs that once felt out of reach and helping you explore further with less fatigue.
From lightweight, natural-feeling models to full-power machines built for steep, technical terrain, there’s a huge range of eMTB styles and technologies to choose from. This guide breaks everything down clearly so you can compare key features, understand the differences, and choose the eMTB that fits the way you want to ride.
Electric mountain bikes use a pedal-assist motor and integrated battery to support your pedalling – you still ride the bike, but with a helpful boost when you need it most. Whether you're new to mountain biking, stepping up your fitness, or aiming to squeeze more laps into every ride, an eMTB gives you the freedom to ride more trails, more often.
Full Power and Lightweight eMTBs
As eMTB technology has evolved, two main categories have emerged: lightweight mid-power bikes that prioritise a natural ride feel, and full-power models built for maximum assistance and range. Both offer incredible performance, but they suit different riding styles and priorities. Understanding how they differ in weight, torque, battery capacity and overall handling will help you decide which type of eMTB best matches the way you want to ride.
Lightweight vs Full-power eMTB: Which is right for you?
Not sure whether a lightweight or full-power eMTB suits your riding best? Use this quick comparison to see the differences at a glance — and a couple of real-world factors that our shop-floor team see every day.
When to choose a lightweight eMTB
- 50–60Nm motors with 300–500Wh batteries
- Optional range extenders for longer days when needed
- Lower overall weight and more natural handling
- Best if you value agility, ride feel, and don’t always need maximum power
- Often ideal when your power-to-weight needs are lower — lighter riders typically need less assistance to climb at a given speed
When to choose a full-power eMTB
- 80–110Nm motors with 600–900Wh batteries
- Long-range, high-support climbing and multiple-lap sessions
- Heavier but more capable on big days out or steep, demanding terrain
- Best if you want maximum assistance or prioritise range and lap count
- A strong choice when you want more support per kilo — especially on steep climbs, longer rides, or when carrying extra kit
Also consider who you ride with: if most of your regular riding group is on full-power eMTBs, a lightweight eMTB can feel harder to keep pace on long climbs or repeated laps. Choosing a similar “power category” to your group often makes rides more social, less rushed, and more enjoyable.
FAQs
Here are some of the most common questions riders ask about electric mountain bikes.
Are electric mountain bikes legal on UK trails?
Yes. In the UK, eMTBs are legal on bridleways and shared-use trails as long as they meet EAPC regulations: the motor must cut out at 15.5mph and be pedal-assist only. Throttle-controlled bikes or faster e-bikes are classed differently and aren’t permitted on most MTB trails.
How far can an electric mountain bike go on a single charge?
Most riders can expect 30–60 miles depending on terrain, elevation, rider weight, power mode and temperature. Using Eco or Auto mode, and avoiding long periods in full-power settings, significantly increases range.
Do I need a licence or insurance to ride an eMTB in the UK?
No. As long as the bike meets EAPC rules (250W motor, pedal assist only, 15.5mph cut-off), it is treated the same as a standard bicycle. No licence, insurance or registration is required.
What’s the difference between lightweight and full-power eMTBs?
Lightweight models use smaller motors (around 50–60Nm) and compact batteries to reduce weight and create a more natural ride feel. Full-power eMTBs use larger motors (80–110Nm) and big batteries for maximum assistance, range and climbing efficiency.
How long does an eMTB battery last?
Most modern batteries last 500–1,000 full charge cycles before noticeable capacity loss. With typical use, this equates to several years of riding. Storing your battery partially charged and in a warm, dry place helps extend its lifespan.
Can I ride an eMTB in heavy rain or through puddles?
Yes – eMTBs are designed for wet UK riding conditions. Motors and batteries are sealed, but you should still avoid pressure washing and store the bike somewhere warm and dry afterwards so electronics don’t remain damp.
How much maintenance does an eMTB need?
Mechanically, similar to a normal MTB: drivetrain care, brake checks and suspension servicing. Electrically, keep firmware updated, protect connectors from moisture and ensure the battery is stored correctly.
Is an eMTB worth it if I’m already fit?
Yes. Many experienced riders use eMTBs to fit in more laps, ride harder trails, improve technical climbing skills and maximise time on the bike when life gets busy. It’s not a replacement for fitness – it’s a tool for getting more out of every ride.
Which eMTB motor system is best?
There’s no single “best” system – it depends on the ride feel you prefer. Bosch CX/CX Race offers powerful support and sharp responsiveness, Shimano EP801 is known for its natural pedalling feel, Specialized 2.2 and SL 1.2 integrate seamlessly with excellent tuning options, Fazua Ride 60 and TQ HPR50 prioritise quiet, lightweight performance, and DJI Avinox delivers some of the strongest peak power currently available. The best choice depends on whether you want maximum power, low weight, quiet operation or customisable control.
How much does an electric mountain bike weigh?
Most full-power eMTBs weigh 22–26kg, depending on battery size and components. Lightweight models typically fall between 16–19kg, thanks to smaller batteries and compact motors. Weight has a noticeable impact on handling – lighter bikes feel more agile and closer to an analogue MTB, while heavier full-power bikes provide more stability and support on steep, rough terrain.