Guide
E-bike size guide: frame sizes by height
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In short
Most adult e-bikes come in small, medium and large frames, or in sizes measured in cm or inches from the bottom bracket to the top of the seat tube. As a rough guide for hybrids, riders around 155 to 165 cm suit a small, 165 to 178 cm a medium and 178 to 190 cm a large. Always check the maker's own chart, your inside leg and the bike's maximum load in kg.
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Getting the right size matters on any bike, and more so on an e-bike, which is heavier and harder to manoeuvre if it does not fit. Sizes vary between makers and between bike types, so a medium hybrid may not match a medium mountain bike. This guide gives a general sizing table in metric and imperial, explains how to measure your inside leg, and covers step-through frames, folding bikes for taller riders and weight limits. Use it as a starting point, then check the specific bike's chart.
General frame size chart
This table is a general guide for hybrid and city e-bikes. Mountain bike sizes often run smaller in seat tube length, so check the maker's chart for e-MTBs. If you fall between two sizes, consider your inside leg and whether you prefer a more upright or stretched position.
| Rider height | Frame size | Seat tube (approx.) |
|---|---|---|
| 150 to 160 cm (4 ft 11 in to 5 ft 3 in) | Extra small or small | 38 to 43 cm (15 to 17 in) |
| 160 to 170 cm (5 ft 3 in to 5 ft 7 in) | Small or medium | 43 to 48 cm (17 to 19 in) |
| 170 to 180 cm (5 ft 7 in to 5 ft 11 in) | Medium | 48 to 53 cm (19 to 21 in) |
| 180 to 190 cm (5 ft 11 in to 6 ft 3 in) | Large | 53 to 58 cm (21 to 23 in) |
| Over 190 cm (6 ft 3 in plus) | Extra large | 58 cm plus (23 in plus) |
How to measure your inside leg
Height is a useful start, but inside leg is a better guide to standover clearance and saddle height. Stand against a wall in socks with your feet about 15 cm apart. Place a hardback book between your legs, spine up, and pull it up firmly as a saddle would sit. Measure from the top of the spine to the floor in cm.
A common rule of thumb for hybrid frames is to multiply inside leg by about 0.67 to estimate seat tube length. You should be able to stand over the top tube with a little clearance when wearing your riding shoes.
Step-through frames
Step-through frames have a low or no top tube, so you do not need to lift your leg high to get on. They are popular on e-bikes because the extra weight makes it awkward to tilt the bike when mounting. They suit riders of any height and are useful for anyone with limited hip or knee movement or who stops often in town.
Step-through bikes are still sized, so check the chart. Our electric hybrid guide includes step-through options.
Folding e-bikes for tall riders
Most folding e-bikes use one frame size with an adjustable seat post and handlebar stem. Check the maximum saddle height and the stated rider height range. Taller riders should also check that the seat post is long enough without going past its minimum insertion mark.
Some folders are better suited to taller riders than others. Our folding electric bike guide lists the key dimensions, and our folding vs full-size comparison covers the trade-offs.
Weight limits
Every e-bike has a maximum load, usually given in kg in the manual or specification. It often covers the rider, luggage and anything on the rack combined, and sometimes includes the bike itself, so read it carefully. Many bikes are rated somewhere between around 100 and 150 kg total, and cargo bikes are usually rated higher.
Staying within the limit protects the frame, wheels and brakes. If you are near the limit, look for bikes with a higher stated maximum load, strong wheels and hydraulic disc brakes.
Frequently asked questions
What size e-bike do I need for my height? Use the maker's chart, then check your inside leg for standover clearance. Our table above gives a general guide for hybrids.
Is a 26 or 28 inch wheel e-bike better for a tall rider? Wheel size and frame size are different things. Tall riders mainly need a larger frame; 700c (28 inch) wheels are common on hybrids for all sizes.
What is the weight limit on an e-bike? It varies by model. Check the maximum load in kg in the manual; it often includes rider and luggage.
Should I size down on an e-bike? If you are between sizes and want an easier stop and start, a smaller frame or a step-through can help. Try both if you can.
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