I spotted these when they were first announced a couple of months ago and I was intrigued.
Sounds like a good idea and the numbers quoted sound good - supposedly they also weight 260gms
Ordered some from CRC http://www.chainreactioncycles.com/Models.aspx?ModelID=61939 and they arrived the other day.
My able assistant helped me with the unboxing
Not 260gms at all then!
344gms is silly heavy for me. My usual tubes are 120gms so these are putting over 200gms onto the bike - as rotational mass too which is the worst place :-(. These things had better work - but the extra weight will be good training weight for Mountain Mayhem?
The tubey shaped bits go on the inside of the tread for the magic puncture resealing. The idea is that the tube is in compression when inflated instead of tension so if it gets a thorn puncture in naturally seals rather than opening up.
The tube's also got glycol slime stuff in it to also heal sealing punctures and a removable valve core so you can refill it with slime.
This is the side of the semi inflated tube. The ridgy bit is the top.
So it went in the tyre OK but I could feel the extra weight.
First test is Sunday in the white peak for 25 miles.
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