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The two types of arm ,on the bottom is a k3 arm
It's the wrong arm and caliper Trig. Just compared it to a 500/550 arm and it's different. The 500 arm doesn't have a slope on the bottom, it has raised edges on top and bottom and no segment like a slice of cake on the lower edge like the one in the pic has. Plus the caliper looks different and the bolt holes are too wide apart on yours. It's the wrong one Trig, no doubt at all in my mind.
Quote from: trigger6969 on May 07, 2014, 10:21:06 PMNorniron, so which arm is the top? if the bottom is K3.Cb500 so ive been told
Norniron, so which arm is the top? if the bottom is K3.
Not really any idea Ewan. It's clearly something from around the 70s, something that used the same sort of design as the 500/550s. Maybe a 400/4 or one of the 750s like say a K4/5. I can't think of anything else offhand, maybe Bryan can shed some light on it.