RipTide recommends the use of the harder durometer cube bushings (97.5a) for heavier-weight riders (over 150lbs) as harder durometer bushings allow for a nice tight set-up
RipTide recommends the medium durometer cube bushings for medium weight riders (120 - 150lbs) - medium durometers (95a) are designed for those looking for a slightly more stable setup in the BoardSide position
RipTide recommends the softer durometer cube bushings (90a) for lighter-weight riders (75 - 120lbs)
NOTE: Photos for the APS Cube 80a & 75a are coming! The 80a are Orange and the 75a are Green.