How To Measure Your Mountain Bike Frame Size

To compensate for this multiply your inseam by a slightly smaller number to calculate your correct bike size.
How to measure your mountain bike frame size. Measure your bike s seat tube if applicable. Some brands such as moots even mix the two. Here s how to measure your frame. Therefore if you make a wrong choice there are only two possibilities.
The frame size is determined by the length of the seat tube. The best way to test a frame size is to go to a mountain bike shop and straddle a bike. More importantly it highlights how to measure a bike frame to your height. Most bikes whether road or mountain are now measured in metric units but you may find some manufacturers that still size mountain bikes in inches.
The above discussion answers frequently asked questions regarding how to measure bike size for adults. Once you know your bike s frame size select it from the drop down to see how tall riders should be to use this bike. If you already have a bike you ll want to know if it s the right size for you. Find the top of the seat tube where the seat clamp meets the post.
Know how mountain bike sizes are labeled and sold. Multiply your inseam by 0 66 if you d like a mountain bike. It is good to remember that a bicycle frame is not adjustable. The most common mountain bike frames come in 15 inch 17 inch and 19 inch sizes and generally they are listed as small medium large or extra large.