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Spoked wheels and tubed tyres [message #297772] Sun, 25 June 2017 09:11 Go to next message
Gearbox is currently offline  Gearbox   United Kingdom
Messages: 5517
Registered: January 2004
Location: Beds (UK)
(15) Kenny Roberts
Interesting stuff here. May be of use to folks who own old stuff. Not convinced by the video though, not very clear on the important details
Re: Spoked wheels and tubed tyres [message #297774 is a reply to message #297772] Sun, 25 June 2017 10:31 Go to previous message
Kakugo is currently offline  Kakugo   Italy
Messages: 7069
Registered: August 2003
Location: Selling Souls at the Side...
(18) Geoff Duke
That "deflation problem" was pretty common with 80's Japanese trail bikes, in the specific those using DID-manufactured wheel rims.
As the rim aged there was a pretty high chance it developed some corrosion on the inside which rubbed against the tube causing loss of pressure and in the long run hard to explain punctures. It wasn't that easy to spot that corrosion: it usually required a magnifying glass and some sensible fingers. If corrosion damage was already visible on the naked eye the rim was usually already only good for the scrapyard.
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