Lotus Elan

Alloy wheels

PostPost by: MarkDa » Mon Dec 04, 2017 11:14 am

Yes, I think that J technically only refers to the curve at the rim itself for getting a seal .
Having said that if there's a good seal it bodes well for tyre staying reasonably stable as a tubeless tyre won't deflate rapidly when punctured unlike a tubed tyre letting air out of valve hole.
The raised rib should help retain a deflated tyre until it destroys itself.
In the link you posted the key element is the H category for the 'hump' that controls tyre movement back to the centre well.
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PostPost by: CBUEB1771 » Fri Dec 08, 2017 10:40 pm

Also remember that tubes should only be installed inside tires requiring tubes. Tubeless tires ofter have internally moulded features that will abrade a tube and lead to a puncture.
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