This rim strip will fit the ZTR Olympic, 355, 355 650b, 355 29er and Arch 29er. Can also be used as a lighter alternative to the Standard model in UST rims. If using standard tube-type tires on UST or similar tubeless rims, the Olympic rim strip is recommended to aid inflation and decrease rapid air loss known as "burping" which occurs under hard cornering, off-camber riding or similar situations.