Bike Size Finder

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Bike size by height

Starting road, mountain and hybrid sizes from published charts, with a page for each height we cover.

Short answer: most adults between about 5'6" and 5'10" start on a medium, but every brand draws its lines a little differently.[1 · Oct 29, 2026][2 · Oct 29, 2026] Pick your height in the table to see the restated starting sizes for road, mountain and hybrid or e-bike, then check the chart for the exact model.

Cyclists riding along a leafy rail trail
AI-generated photo made for this site, not a customer photo.

Bike size by height chart

Figures below are restated from BikeRadar's road chart, a bike shop's general mountain chart, and one brand's hybrid and e-bike height chart. They are starting points, not a universal fit.

Rider heightRoad (effective top tube)[1 · Oct 29, 2026]Mountain[2 · Oct 29, 2026]Hybrid or e-bike (one brand's chart)[3 · Oct 29, 2026]
4'10" (147 cm)XXS (47–48 cm)XSoutside chart
5'0" (152 cm)XXS (47–48 cm) or XS (49–50 cm)XSoutside chart
5'2" (157 cm)XS (49–50 cm)SS
5'4" (163 cm)S (51–53 cm)SS
5'6" (168 cm)S (51–53 cm) or M (54–55 cm)MM
5'8" (173 cm)M (54–55 cm)MM
5'10" (178 cm)L (56–58 cm)ML
6'0" (183 cm)L (56–58 cm) or XL (58–60 cm)LL
6'2" (188 cm)XL (58–60 cm)XLXL
6'4" (193 cm)XXL (61–63 cm)XL or XXLXL
6'6" (198 cm)XXL (61–63 cm)XXLoutside chart

We also have height pages for 5'7", 5'9", 5'11", which fall between the rows above. Those pages use the same published charts and explain the overlap.

Height pages

Each of these pages looks at one height in more detail, with the same sourced charts:

For a single table plus advice on how bikes are sized, see what size bike do I need.

Bike size by height FAQs

Can I pick a size from height alone?

Height gets you a starting size. Inseam, reach and the exact model's chart matter too, and a test ride is the best check.[1 · Oct 29, 2026]

Why do two charts disagree at the same height?

Brands place their size boundaries in different places. That's why we show more than one chart and don't claim a universal fit.[2 · Oct 29, 2026]

Sources: 1. BikeRadar, Road bike sizing. 2. Ridley's Cycle, Mountain bike size chart and fit guide. 3. Polygon Bikes, Sizing guide (height charts by bike type). Checked Oct 29, 2026. Trademarks belong to their owners; charts are restated in our own tables, not reproduced.