+1 a Brief Pause in the Power input allows the Mechanism of the IGH to change gear combinations ..
Gen. Eisenhower was in the White House when I had my 1st S-A Hub..
there has to be the torque stop in the dropout to have the hub gears work properly ..
Dan B has videos of the tear down, build up of them ..
Last edited by fietsbob; 02-18-16 at 12:21 PM.