How to know or calculate the right size?
City bike – Leg inseam (cm) x 0,685 = Your frame size
Mountain bike – Leg inseam (cm) x 0,66 = Your frame size
Road bike – Leg inseam (cm) x 0,70 = Your frame size
Take off your shoes and stand with your legs about 15-20 cm (6” – 8”) apart. Measure the height from the ground to your crotch.
EX: If your leg inseam is 76cm, then your right mountain bike size is 50 cm (20”), road bike 53cm and city bike 52cm