Ancillotti pull shock is not like Schwinn or Buell, a “Pull Pull” type, where the shock is also extended; this is a Pull-Push, as it is the simplest solution from a mechanical perspective to compress the Shock than extending it and this does not affect the ride. the important and influential thing is that the swing arm pull the suspension, because the swing arm is collected and retains the wheel, indeed in the pull shock the swing arm pulls and not pushes the system, all the linkage are posed below the swing arm, which is totally different from a push system, where linkage is placed on top of swing arm. This allows a lower barycenter and reduce the weight of all the linkage more than the directionally advantage of the rear wheel Ancillotti motorcycles patented the system in the 1980 as first in the market (they invented it) nowadays almost all motorcycles adopt this system as the best.