The 30Ton TrestleJack specifically designed for the R24.5 wheel size is a new lifting solution in the logistics industry based on a leverage principle for lifting heavy load trailer axles. Heavy load trailers fitted with R24.5 tire size commercial or super single type tires are the only tire sizes the 30T TrestleJacks R24.5 product range support. The TrestleJacks R24.5 are designed to fit any square or round axle on most modern trailers with the R22.5 wheel size.