Just a few words of thanks

[Irish in Oz]

I forgot about the X7.

[froudy]

I love that Kenny Roberts "Speed block" RD400 @Irish in Oz 

A good friend of mine that lives in Belfast has a huge collection of strokers..In fact I think he owns just about every stroker in Ireland

[Irish in Oz]

I believe it is known as Eurostripe, correct for that year model but the competition yellow was not used on them until the the D model 1977 with the narrower stripe. The tank is slightly smaller than the UK model as this one is US/Canadian.
Would they be road or racing bikes.

[froudy]

He owns all road bikes last time I chatted with him. Mostly RDs from memory