@peter_v I've changed indexed sun race thumb shifters to be friction, pretty sure the principle would be the same for all. Unscrew the top screw, gently tap it apart (gently to keep the parts on order) remove the ball bearing that/does the indexing and add washer(s) to fill the gap. Put back together.
@peter_v I've changed indexed sun race thumb shifters to be friction, pretty sure the principle would be the same for all. Unscrew the top screw, gently tap it apart (gently to keep the parts on order) remove the ball bearing that/does the indexing and add washer(s) to fill the gap. Put back together.