Swapping out a pair of rough black, wide (29 inches) street tracker-looking 22mm handlebars that came with the '78 R100S. The dimensions of the black bars spec out exactly as a Flanders BMW sidecar bar. Replacing them with narrower chrome R90S bars.
The black bars have a stamping on the twist grip end. Guessing it's a British stamp as being approved for replacement bars. The data is posted below. Interested in what all the info translates as. No biggie. Just first time I've seen anything such as this.
SB
MOT - 029ST
W 730
2000 06