E-bike size chart: what size electric bike do I need?

More range, more hills, more fun. Get the size right before the motor does the rest.

Short answer: e-bikes are sized like regular bikes, from your height first. In one brand's e-bike chart a medium covers 165–175 cm (about 5'5" to 5'9"), and another maker's e-bike frames run from 46 cm (S) to 57 cm (L).^{[1 2 · Oct 29, 2026]} Brands differ, so check the exact model's chart and test ride.^{[2 · Oct 29, 2026]}

E-bike size chart (one brand's published ranges)

The same maker lists some e-bike models in a single size for 150–170 cm riders.^{[1 · Oct 29, 2026]}

E-bike frames sized in cm

This maker measures frame size from the center of the bottom bracket to the top of the seat tube, and says that with an average height almost every model comes in a size that fits, which is why it may suggest more than one size.^{[2 · Oct 29, 2026]}

Quick e-bike fit tips

• Use your inseam as a cross-check: one maker's rule is inseam (barefoot) × 0.68 = frame size in cm, minus 4 cm from the inseam first for a suspension seatpost.^{[2 · Oct 29, 2026]}
• Check the rider weight limit on the model page. One maker lists limits from 120 kg (about 265 lb) to 150 kg (about 330 lb) depending on the line.^{[2 · Oct 29, 2026]}
• Test ride both sizes if you're on the boundary.^{[2 · Oct 29, 2026]}
• Do e-bikes run larger or smaller than regular bikes with the same size label? Unverified. We couldn't confirm a reliable source for this yet.

Sources: 1. Polygon Bikes, Sizing guide (height charts by bike type). 2. Gazelle, Bike frame size chart. Checked Oct 29, 2026. Trademarks belong to their owners; charts are restated in our own tables, not reproduced.