Hybrid bike inseam in cm x 0 685 your frame size mountain bike inseam in cm x 0 66 your frame size road bike inseam in cm x 0 70 your frame size.
Mens bike frame sizes inches.
51 cm mountain bike.
Mountains bikes now come in three different wheel sizes.
Bike frames are measured from the middle of their bottom bracket to the end of their seat tube.
The sizes are measured in inches mtb or centimeters.
You may find both units in the description of the bike.
That s a system used for some road bikes too.
Generally you should be good with a bike that has a frame size of 17 19 inches.
That s not true of mountain bikes where the frame size is usually marked s m l etc.
Imagine your leg inseam is 74cm then the best frame sizes for you are.
Merida s road bikes go through s s m m l and l.
You can find them with 26 wheels 27 5 wheels or 29 wheels.
The deciding factor for the size of a bicycle is the frame in particular the seat post the distance from the center of the bottom bracket to the top of the seat post.
49 cm road bike.
The tables below show the frame size that best suits your height.
If all three have a 15 frame there will be a height difference between them due to their wheel size.
Method 3 bike size chart by height.