Jon, the bit I have was sent to be by Ken Morton. He got it from a car in Yorkshire from a farmer who has an Ulster and has had for many decades. I know he also sent me some information about the car. I will have a look for it.
Lowespeed, the RM 12 is the type that David Cochrane supplies and the RM13 is the type that Willie McKenzie supplies. Both will work, and I have both. The solid type doesn't fit well, the flat part being too flat and the rounded part is cut too low and deforms as it fits over the bodywork from the mounting flange. RM12 is much wider and the rounded part is more of a diamond shape. I realize these are fine points, but apparently Willie and David are having trouble even finding these. So my thought is, that rather than produce 50 meters more of something that isn't quite right, then perhaps making the correct profile makes sense.
Erich in Seattle
Lowespeed, the RM 12 is the type that David Cochrane supplies and the RM13 is the type that Willie McKenzie supplies. Both will work, and I have both. The solid type doesn't fit well, the flat part being too flat and the rounded part is cut too low and deforms as it fits over the bodywork from the mounting flange. RM12 is much wider and the rounded part is more of a diamond shape. I realize these are fine points, but apparently Willie and David are having trouble even finding these. So my thought is, that rather than produce 50 meters more of something that isn't quite right, then perhaps making the correct profile makes sense.
Erich in Seattle