The road bike is stock, I just accept it for what it is as I have other bikes, just did 700km this weekend 2 up, nice ride.
BMW went to a clutch carrier type flywheel/clutch in 1981 across the range. Easiest way is get a later flywheel assembly ( German Ebay is good) a post 81 gearbox and starter motor.
its a swap out conversion.
I converted mine from single to dual disc, RH leg is hard to find. Race bike did the same just got another l/h one and welded the tangs on the other side.
Keeping the 14mm M/c and dual discs works quite well. The single one is pretty poor, not quite 72 Combat poor but close.
Take an 81 on BMW for a spin, they are like chalk and cheese to the earlier ones.
I have an 83 R80ST ( semi GS with dual sport tyres) , great bikes, would be good for your Irish back roads, although I never got used to having tractors with spikes coming towards me or blokes playing bowls on the road.
I sold my 71 BSA Lightning in Cork in 2004, was a grand bike for the roads around Cork and Kerry. :mrgreen: