An internal transmission hub assembly includes a shift control sleeve, a
sleeve guide and a shifting key guide. The shift control sleeve is
disposed for limited circumferential movement about the axis of rotation
of a stationary hub shaft. The shift control sleeve includes a base
sleeve and at least one pawl control arm, the base sleeve having a first
end and a second end. The sleeve guide supports the first end of the base
sleeve of the shift control sleeve about the stationary hub shaft. The
first end of the base sleeve is welded to the sleeve guide. The shifting
key guide supports the second end of the base sleeve of the shift control
sleeve about the stationary hub shaft. The second end of the base sleeve
is welded to the shifting key guide.