I bought a box of 50 leading up to our John O Groats to Lands End trip and have used just over half of them. I have kept a couple for my spares but the rest are all up for sale! They are Brand new still in the box Specialized tubes with the long (48 mm) valve. They look just like these http://www.evanscycles.com/products/spe ... gn=froogle
I have 20 left and I am looking to sell them as packs of 4 for £15 posted. Although if you wanted more I won't complain!
I don't really want to sell them indivdually as the postage cost increases because it is over 25mm tall and you only end up saving about 20p.