The calculation here will give you your bike s frame size.
18 inch bicycle frame size.
To measure your bike s frame size take a measuring tape and place the tape in the center bolt of your bike s cranks.
Many bike manufacturers will quote bike sizes as s m l or small medium or large etc.
In very general terms an 18 inch bicycle is best for someone just under six feet in height but factors like inseam length and the differences between bike manufacturers can all influence the fit.
On some or all.
The sizes are measured in inches mtb or centimeters.
5 10 6 0.
Road bikes use the metric system and usually fall between 48 and 63 centimeters.
That s why missy erickson owner and fit specialist at ero sports recommends a pre purchase bike fit for all athletes it doesn t matter if you re buying a new bike from a bike shop.
Mountain bike frames are measured in inches and usually fall between 13 and 23 inches.
Once you have this measurement you can compare it to a manufacturer s inseam measurement and determine which frame size is best suited to your frame.
However this is something many people overlook.
161 172 cm 5 3 4 5 7 7 170 179 cm 5 6 9 5 10 5 177 188 cm 5 9 7 6 2 186 196 cm 6 1 2 6 5 2 195 203 cm 6 4 6 7 9.
Dialing in your fit.
147 155 cm 4 9 5 1 153 162 cm 5 2 5 3 8.
The tables below show the frame size that best suits your height.
Alpha size xs s m ml l xl xxl.
Whether you are interested in road or mountain biking picking a bike with the correct frame size is very important.
Fortunately our bike size chart takes away the guesswork as it suggests mountain bike frame size and road bike frame size in either inches or centimetres alongside manufacturers bike size charts.
Bike frame sizes are measured in the same way for all styles of bicycle.
Bike frame size chart.