Michelin Airstop Road Inner Tube - Presta - 700x25/32 40mm

Arrived in good time with a pair tyres that's I'd ordered one thing to note is the valve isn't threaded, not that it's an issue for my wheels all fitted okay seem like a good solid tube, for commuting they are fine.

I brought these tubes as an add on offer at an attractive price. They sit in their boxes waiting fo a puncture. The rubber appears to be thicker than the racing tubes I currently use, I don't know what difference this will make.