Whether you already have an intended use in mind or just want a unicycle that's ready for anything the XL will fit the bill. We've taken our classic uni-crown frame design and stretched it to allow for the use of a huge 4-1/4" wide wheel and tire. At the seat we added a handle and the seat post incorporates a diamond cut on the lower portion to help prevent slippage during times of additional strain. If that weren't enough we also added a double bolt alloy seat clamp just in case.