I thought this might be interesting to some people, enough for them to
pass comment.

Perhaps not, or it got lost in the noise about 14 year old record and
Shimano Headsets?

On 15/05/17 13:19, James wrote:
http://www.mtbiking.com.au/news/banger-anti-flat-system

Looks like the black foam lagging a plumber might use when installing
hot water pipes.