Welsh
Grumpy Mutt
A four valve set :biggrin:
https://www.ebay.co.uk/itm/BMW-R100-R90-R80-R75-R60-5-6-7-R90S-KRAUSER-HEADS-SET-K4V/323393308103?hash=item4b4bbe45c7%3Ag%3AcD4AAOSw5UVbcCnG&_sacat=10063&_nkw=bmw+r100&_from=R40&rt=nc&_trksid=p2060353.m570.l2632.R3.TR12.TRC2.A0.H0.Xbmw+r100.TRS0
https://www.ebay.co.uk/itm/BMW-R100-R90-R80-R75-R60-5-6-7-R90S-KRAUSER-HEADS-SET-K4V/323393308103?hash=item4b4bbe45c7%3Ag%3AcD4AAOSw5UVbcCnG&_sacat=10063&_nkw=bmw+r100&_from=R40&rt=nc&_trksid=p2060353.m570.l2632.R3.TR12.TRC2.A0.H0.Xbmw+r100.TRS0