We'll have the right stem for you whether you ride a vintage or a fixie bike. Before you purchase any stems, we'll recommend measuring not once but twice. Your fork will need a stem that is either 1" or 1 1/8" in diameter - unless you need a quill stem. Another place to measure is your handlebar, as you will need the size of the attachment point from it. Stems size and angle will affect your riding position - remember that most modern stems can also be assembled upside down, so you may decide if you want a comfortable or aggressive riding position.