The stem attaches the handlebars to your bike and choosing a different stem length or angle is a great way to make adjustments to your position on the bike. Whether you ride a road bike, mountain bike or hybrid, there are two measurements you have to note when buying a new stem.
You need the handlebar width so you get the right clamp size and you need to know the size of your steerer tube to make sure the other end of your stem will fit to your bike.
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