Whether you already have an intended use in mind or just want a unicycle thats ready for anything the XL will fit the bill. Weve taken our classic unicrown frame design and stretched it to allow for the use of a huge 414 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 werent enough we also added a double bolt alloy seat clamp just in case. UniCrown H