Shifter fork shaft

Two snap rings hold the mainshaft roller bearing into the trap door.

34141-52
1952-1976

34141-52A
1977-1984

The 52A part most likery retorfits to all models. Perhaps the taper on the end was added or changed.

This part mounts the two shift forks adn allows them to slide as you change the gears.

The Iron Sportster trap door assembly holds the mainshaft, countershaft, and shifter mechanism.

Sportster 34141-52A shifter fork shaft 1977-1984

Shifter fork shaft

Sub-assemblies