Aut cum scuto aut in scuto
Sometimes I miss safety wiring.
It's not an easy thing to do. Getting it to spin up tight at just the right length--I was doing it on my airplane and thought I had it pretty good, until the mechanic supervising me pointed to the little ding on the wire around the nut and said "That's the weak point where it'll break." Start over.
I do miss it also. Nearly 30y ago had to take a class for safety wire certification working fire control AH-64. The Moto back then was Zero Defects, no rework or do overs.
Rennsport BMW - as used in sidcar outfits?
G_d I love bikes. All bikes. Although, I'm particularly fond of my Indian.
I was right! www.motorcyclespecs.co.za/model/Racers/bmw_500_rennsport.htm
Looks like quite the monkey motion going on in that mosickle cylinder head. Thought it was a desmo Ducati at first, or a BMW. Wondering about the little gears or position adjusters that seem to do something regarding the rocker arms. Actually, thinking about it, the valve springs may eliminate the possiblity of Desmo Ducati. But I am still uncomprehending. A bit further along the thought processes, the overengineering that seems apparent points to Deutschlandisch origin.