Triumph 500 Mushroom Valve Adjuster SET made in USA unit only Norton Memorabilia and they were the best

and they were the best they ever used

NOT suitable for desmo

These beautiful tools should be in the toolbox of every owner of a Ducati bevelhead

Includes o-rings for the larger plugs

Triumph 500 Mushroom Valve Adjuster SET made in USA unit only Norton Memorabilia and they were the bestSuitable for UNIT Triumph 500 twin engines. The only adjusters you should use in your vintage British machine, period. American made, Rockwell hardness 60, micro finished 'mushroom' head. These adjusters create a wide valve contact area, improving the sometimes dubious geometry of high performance British pushrod ohv engines. No more pitted valve stems.