Action Bicycle Bikes are 28″ using 700C wheels. While we generally say our bikes are suitable for anyone from from 160cm we recommend you take our bike for a test ride before you buy. Ultimately it’s about how comfortable you feel when riding. Another good way to find out what size bike is suitable for you is to follow these steps.
Start by removing your shoes.
Stand with your back against the wall, feet about shoulder width apart.
Put a large book between your legs, with it’s spine firmly up against your crotch.
Have someone measure from the floor to the spine of the book.
Jot down your inseam.
Quill Stems and Head Stems All our bikes use stems which allow adjustment of the height of the handlebars quite easily. You need need to loosen the bolt at the top of the stem, adjust the height and then tighten it again. This bolt holds the stem in place, so it’s very important that it’s tightened correctly. It’s also important that the stem is inserted properly into the steerer tube.