bike sizing guide

Get your measurements

Before buying a bike, it’s important to know your height and inseam (in centimeters). Here’s a simple way to measure your inseam using the 3-step book method:

  1. Take off your shoes.
  2. Place a book vertically between your legs, pressing it up into your crotch. This simulates the saddle (or seat) of a bike.
  3. Use a tape measure to find the distance from the soles of your feet to the top of the book.

Note: The table below is a rough guide. Keep in mind that measurements can vary between bike manufacturers.

Height (inches) Inseam (inches) Frame size (inches) Frame size (e.g.Canyon)
59.1-63.0 <29.1 16.9-19.3 2 XS
63.4-65.0 29.5-30.3 19.7-20.1 2 XS
65.4-66.9 30.7-31.5 20.5-20.9 XS
67.3-68.9 31.9-32.7 21.3-21.7 S
69.3-70.9 33.1-33.9 22.0-22.4 M
71.3-72.8 34.3-35.0 22.8-23.2 L
73.2-74.8 35.4-36.2 23.6-24.0 XL
75.2-76.8 36.6-37.4 24.4-24.8 2 XL
>77.2 >37.4 >25.2 3 XL

Getting more specific information

Check with the manufacturer

  • Many manufacturers have size guides for specific models available online. It’s a good idea to check their website for more detailed recommendations.

Speak directly with the seller

  • Send the seller a direct message on buycycle and ask for a sizing reference for the bike you're interested in.

buycycle sizing recommendations

The sizing recommendation provided in the listing is a general guideline. We can’t guarantee the accuracy of these suggestions, as sizing can vary between models and brands. To make sure you’re getting the best fit, we recommend double-checking the bike's geometry and using online bike fit calculators. These tools will help you find the bike that fits you perfectly.