Seismic Rippler Wheels 59mm x 43mm 90A set of 4. 41mm running surface, Offset bearing seat, Square outside edge, beveled inside edge. The 59mm x 43mm Rippler is a micro, lightning-quick version of our Hot Spot shapes - ideal for filmers, retro pool/park boards, and general-purpose cruising (especially on small locker-style setups). Frequently imitated by sellers of low-cost plastic boards, it was the first sub-60mm wheel on the market designed with classic race-oriented lip profiles.