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The correct key size for a 44 to 50mm shaft is 14x9mm (to BS4235:Pt 1). Depth of key slot in shaft should be 5.5mm -0/+0.2mm. Depth in the hub should be 3.8mm -0/=0.2mm. Width in hub and shaft...

Between the Dunlop and the Avon, what did you find the difference to be, which was quicker? (Apart from the theoretical night and day reference of course...)

We're facing the same problem here in NZ...and everyone is slowly switching to the Avons. They are stickier than the Dunlop, which means a bit faster, but also wear out a bit faster too.

Contacts above are from the Avon website for USA dealers.

Sascosports Address: 1071 Raceplex Dr Unit B ...

Avon ACB9 - it is a period correct tyre. We are running them now in NZ due to the lack of Dunlops, which will be here when hell freezes over....

The are a little stickier than the Dunlops, which...

Tom,

That 342 you were asking for pics on in the Vic Historic forum can be found in the Feb Formula Ford newsletter in the same forum under Newsletters funnily enough. On page 14, to be precise.