Fork Brace
This one was originally designed and built by race
tuner Pierre des Roches, and sold in volume by a California company,
Racecrafters. It was originally called the "Golden Gate Bridge". It would need
either bending to fit and not side load the sliders, ot shimming to not pull the
tubes together.
K&L, Tucker-Rocky used to have a nicer one made from cast aluminum, bolted
together, 5 pieces. It was made in Japan.