Motion Note: 83mm Centrax are huge downhill wheels with purely grip in mind. Soft urethane in a centerset shape with big square lips give you MAXIMUM traction and compression through corners to allow you to take the lines you want. Do not plan to drift with these wheels. Shop Note: if you are under 170lbs make sure to get the 77a (Pink) ones because the 80a’s (Lime Green) don't compress enough for lighter people. If 83mm is a bit too much wheel, we recommend taking a look at the smaller, 77mm Centrax Wheels.