CGT Restoration - Update

[Hanno Spoelstra]

Originally Posted by gordon

Hanno pretty much has it, not sure of the exact size, but ...

The real difference is that the US wheels / tyres have a 5 degree angle on the seat, wheras British / Canadian ones don't.

It is quite easy to fit British tyres on US rims ( I've never heard of problems doing this, despite the size difference) but doing it the other way round wouldn't be easy as you have found out.

Gordon,

I beg to differ. While the debate has been on the 0 vs. 5 degree bead taper, the real difference is the larger bead diameter of the British/Canadian 16" rims. To be precise, ¼" larger, as Mike Kelly found out by measuring.

That is why it is easy to fit tyres for British rims on US rims. I know of cases where the British tyres would not center properly on US rims because of the larger bead diameter, leading to wobbling etc.

Regards,
Hanno