These sizing charts provide a range of heights that will comfortably fit on each size of bike. There is overlap between sizes, as shown here (Giant Escape 1 Chart):

If you’re in the middle of one of the ranges, it’s easy to determine the size. 

If you’re between two sizes, and you have all options available, you should pick the size that leaves you closer to the top end of the range for your size.

This means you should probably buy the smaller bike. If you imagine yourself as a coiled spring able to uncoil to deliver power into your bike, you’d prefer to be more coiled (within the size chart boundaries), which leaves more room to put power into the bike. Furthermore, If you find that your bike feels too small, it is easier to lengthen the cockpit than it is to shrink it without compromising how the steering feels.

So, by the chart above, a rider who is 5’7” could own a Medium-sized Escape 1 and be very happy with it. If the Small was an option at time of purchase, however, it would likely be the better choice.

Remember to only consult the sizing chart for the specific bike that you are interested in.

If you have especially long limbs (long arms etc.), it’s still best to trust the sizing charts. They were designed with all sorts of people in mind.

Sizing for bikes with drop handlebars (Giant Contend AR 2 Sizing Chart shown):

Higher performance bikes will have more sizes available so that riders can get the performance they’re looking for no matter their height. The same philosophy applies here: being in the middle of the range is the best, but being at the top is better than the bottom. Probably someone who is exactly 6’2” (and therefore fits into 3 sizes) should be on the Large, could very happily ride on the Medium-Large, and probably would prefer to do so than to try to fit the Extra Large.

Again, make sure that the sizing chart you are using is specific to the model you are interested in. The chart above is accurate only for the Giant Contend AR bikes.

Sometimes sizes will be provided in centimeter measurements rather than S-M-L sizing.Typically the sizes will line up as follows:

Subject to change depending on specific bikes.

Hopefully this info provides some confidence in figuring out your size without seeing the bike. If you still have questions, send an email to sales@freshairexp, and we’ll get back to you via email or phone.