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Reviewed by 1 customer
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Comments about Michelin Aircomp Ultra Light 26" PV Tube:
I selected this tube based on the wide size range that it will fit (26" x 1.5-2.1"). My wife has 1.5" tires on her touring bike, and I have 2.15" on mine. So we each carry one of these in our seat bags (one size fits all). They are lightweight (152 g - I weighed them), pack kinda small, and appear to have very good rubber quality.
But watch out when opening the presta valve nut, as it can spin off the valve screw completely, due to an un-crimped screw end. At this point the inner valve (screw shaft w/ seat) can fall into the tube, so good luck fishing that thing out. This screw can be repaired by upsetting the threads so the knurled nut won't spin off.
Another thing to note is the presta valve body is smooth and has no retaining nut, so it requires a little more handling when installing. Also, w/ the lack of threads on the outside, there's less grip for a push-on chuck from a floor pump (may require a 3rd hand to hold the chuck on).