When shopping for a new clamp you will want to make sure you have the right size! There are two sizes to choose from: Standard (31.8mm) and Oversized (34.9mm). The clamp will have to match the size of your bars. We also have SCS clamps. SCS stands for Standard Compression System. These are 4-5 bolt clamps that are made to hold your bars, forks, and deck all together. Don’t get these confused with regular clamps!