Suspension Sleeve kits
The mushroom sleeve kit as used in the RD300 roller top mounts, the kits are either 1/2 or 5/8 internal and 3/4 external - the mushroom part that goes into the bearing is about 5mm on both parts, the very long part is to take up the extra thread that a standard road insert would have.
1/2 is usually MK1 Escort
5/8 is Capri and MK2 Escort
