This is the 120mm x 30mm version of the UHR wheel. The 30mm width will give riders a larger balance point for manuals, and fakies (going backwards). It will also give your deck more clearance on the left and right side. This means that you're less likely to wash out in fakies, and you don't have to be as pitted when you're carving transition. Some parts aren't able to fit this large of a wheel; if you're not sure if you can ride these wheels, please don't hesitate to reach out!The UHR Wheels are part of Tilt’s Stage III collection which brings scooter wheel performance to the next level. The Ultra High Rebound formula is focused on rebound. Higher rebound gives you more speed and the smoothness while riding. The pre-greased bearings and precision spacers make assembly as easy as a feeble grind. Whether you're in the park or in the streets, the UHR wheels will maintain speed through whichever line you choose.