Sounds like I need to do that to daughters RP which has a Semi girling front. It stops so so. But isnt a patch on the RL.

Then again its probably easier to fit a proper axle to it.

Pedal travel is generous and springy by modern standards but puzzled that could not persuade to work.

Re mixed sytems, when the much smaller cams are combined with longer arms the leverage and thus travel of semi Girling is much greater than early systems, esp with short arms, so, as earlier posts on topic, standard semi Girling on the front alone is dubious.

(The advantage of semi Girling lies mainly in the greater leverage from small cams)

Location: Auckland, NZ