Deflated – TKC80 tyres on an R100GS need inner tubes!
That's what it says on the side of the Continental TKC80 tyres now fitted to my BMW R100GS Paris Dakar. One would assume that means "don't use an inner tube". I made that assumption. So did the tyre fitter. The fitment guide on the Continental web site has quite a different interpretation of the word:
The fitment info even states which tubes to use.
Perhaps this little misunderstanding explains why my tyres were completely flat this morning. It could be that TKC80s aren't sufficiently rigid at the bead to give a good enough seal. Or perhaps the first generation Akront tubeless spoked rims are a bit too leaky (Metzelers also deflate, but much more slowly).
So its back to Behind Bars in the week to get some tubes fitted.
It didn't stop me going for a ride out to Stoneleigh on the way home, with a quick bimble down a green lane. Mud, mud, glorious mud.