SIZING BIKES

SIZE DETERMINATION

  • Place your feet about 15 cm apart.
  • Measure the distance between the ground and your crotch. Attention: do not wear shoes!
  • Multiply that inseam by 0.65
  • This is the size of your bike in cm. Divide by 2.54 for the size in Inch.

Is the bike size somewhere in between ? Then which size do you choose ? If you are a regular touring cyclist, choose the size larger. If you are a sporty cyclist, choose the size smaller.

General size chart by bike.

Bike size mountain bike:

Body length:Inch size:Frame size:
150 - 165 cm14 - 16 inches35 - 41 cm
165 - 170 cm16 - 17 inches41 - 44 cm
170 - 175 cm18 - 19 inches44 - 48 cm
175 - 180 cm19 - 20 inches48 - 51 cm
180 - 185 cm20 - 21 inches51 - 52 cm
185 - 190 cm21 - 22 inches52 - 54 cm
190 - 195 cm22 - 23 inches54 - 56 cm
195 - 200 cm23 - 24 inches56 - 61 cm

Bike size road bike:

Body length:Frame size:
155 - 165 cm47 - 50 cm
165 - 170 cm50 - 52 cm
170 - 175 cm52 - 55 cm
175 - 180 cm55 - 58 cm
180 - 185 cm58 - 61 cm
185 - 190 cm60 - 62 cm
190 - 195 cm61 - 63 cm
  

Bike size city bikes - Women

Body length:Frame size:
155 - 165 cm43 - 47 cm
165 - 170 cm45 - 49 cm
170 - 175 cm49 - 53 cm
175 - 180 cm53 - 57 cm
180 - 185 cm55 - 57 cm
185 - 190 cm57 - 61 cm
190 - 195 cm59 - 61 cm
195 - 200 cm61 - 65 cm

Bicycle size city bikes - Men

Body length:Frame size:
155 - 165 cm47 - 49 cm
165 - 170 cm49 - 51 cm
170 - 175 cm51 - 53 cm
175 - 180 cm53 - 57 cm
180 - 185 cm55 - 57 cm
185 - 190 cm57 - 61 cm
190 - 195 cm61 - 63 cm
195 - 200 cm63 - 65 cm
Bike Menu
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MENU
✦ BE CREATIVE — CONFIGURE YOUR BIKE
View bicycle
Calculate your bike size
Quickly determine the correct frame size based on your inside leg measurement
Hoe meet ik de lengte van mijn binnenbeen?
Stand with your feet about 15 cm apart, without shoes on, in close-fitting trousers or underwear. Push a flat object, such as a ruler or book, up between your legs until it's snug against your crotch and parallel to the floor. Measure the distance from the floor to the top of the ruler or book. This is your inside leg measurement.
Type of bicycle
centimetres
Enter your inside leg measurement to calculate your bike size.
* We are not responsible for a wrongly ordered size based on this calculation. If in doubt, consult a Thompson dealer.
Binnenbeenlengte uitleg

You now know the approximate suitable frame height for your new bike. These factors also play a role:

Arm length & shoulder width — determine the frame size.
Desired seating position Sporty or comfortable influences your choice.