Curious pattern on tyre sidewall?

Are forest-pixies playing tricks on me? This is what my tyre looked like at the end of my last ride. The “stripes” face the other direction on the other side of the tyre.

Any ideas as to what causes it?

Phil

29er_tyre_sm.jpg

I think its the inner makings of the side wall. The web inside under the rubber. Did you have the tire at a fairly low presure? I think it was the web folding and making the dirt rub off.

tim is correct! iv had the same thing happen with my luna.

Nah, Tim is wrong. It’s forest pixies.

Tim,
Good thinking, and thanks…I’ve always wondered about that.

Phil,
I didn’t even have to check to see who posted this thread…who else here would use the word ‘curious’? :wink:

Andrew