The 1.5mm longer arm stiffens the initial part of the stroke for better control and less wallowing in rough sections of the track. Typically the bike feels more balanced and predictable while handling is improved in flat and off-camber turns, driving the bike forward instead of sliding sideways. With the Ride Link, less effort is required to initiate turn-in and it keeps the bike going straight in whoops allowing the rider to be more aggressive. It also keeps the back end more planted in breaking bumps. This link lowers the back of the motorcycle 5mm. It comes complete with bearings and seals. Recommended sag with the Rideng Link is 102-104mm.