Electric Bike Size Guide
Choosing the right size e-bike makes a huge difference to comfort, confidence and how far you can ride.
Riding the right size bike will feel better, be more efficient and help you ride further with less effort.
Choosing the correct size depends on several factors including the type of bike, your height, your proportions and how you plan to ride.
All sizing information should be used as a guide. Each product page includes a brand-specific size guide above the size selector to help you choose more accurately.
A properly sized bike should feel comfortable, stable and easy to control. If you feel stretched, cramped or unsure when stopping, the size is likely not right.
Getting the basics right
For bikes with a crossbar, you should be able to stand over the frame with around two inches of clearance.
When seated, the ball of your foot should comfortably reach the floor. You should not need to lean heavily to one side or be on tiptoes unless you prefer a higher saddle position.
If your bike has a suspension seatpost, keep in mind that the saddle may not lower as far as a standard post.
How frame size is measured
Frame size is typically measured from the centre of the bottom bracket to the top of the seat tube. This can vary slightly between brands and models.
Do not assume sizing is consistent across brands. For example, some hybrid and leisure bikes can feel larger, while some mountain bikes are designed to feel more compact and manoeuvrable.
Brand size calculators can also be useful starting points:
Cube size guide |
Haibike size guide
Wheel size and how it affects fit
Wheel size can change how a bike feels overall. Smaller frames sometimes use smaller wheels to improve control and fit.
The most common sizes are 26", 27.5" and 29" (also known as 700c). Some electric mountain bikes use a mixed wheel setup, with different sizes front and rear.
You can read more in our wheel size guide .
What if you are between two sizes?
It is very common for riders to sit between two frame sizes.
The deciding factor is usually reach, which is the distance to the handlebars. If you have longer arms and torso, the larger frame may suit you better. If you are more compact, the smaller frame is often the better choice.
Avoid choosing a bike that is too large. If the reach is too long, your position will feel stretched and uncomfortable, which can lead to back or neck pain.
If you are unsure, our team can help, and exchanges can usually be arranged if the bike has seen minimal use.
How high should your saddle be?
Correct saddle height improves comfort and pedalling efficiency. Here is a simple way to set it:
- Stand next to the bike and set the saddle roughly level with your hip bone. Make sure the seatpost is not extended beyond the minimum insertion mark.
- Sit on the bike while supported and rotate the pedals so they are at the highest and lowest points. Place your heel on the lower pedal. Your leg should be straight but not locked.
- Return your foot to its normal position on the pedal. Your knee should now have a slight bend when the pedal is at the bottom.
- Use this as a starting point and adjust slightly based on your comfort.
Still unsure on sizing?
The best way to be confident is to try a bike in person. Book a test ride or speak to the team for advice tailored to you.