2 of 3 customers found this review helpful.
I have been riding the Michelin A1B1 AirComp tubes on all of my 700x23c tires ever since I first discovered them about 12 years ago. The initial selling point for me was the smooth stem. I top off my tires before every ride and the threaded stems were wearing out the rubber gasket in the head of my floor pump. Sometimes I almost couldn't disengage the pump head and had to apply so much pressure I was afraid I was damaging the valve stem. The smooth stem AirComp makes adding air a breeze (no pun intended).
The slight extra cost of the AirComp over other tubes is easily offset by the cost of pump head gaskets or, in one case, a whole new pump since I couldn't find a gasket.
I have also found the AirComp to be very durable. If all goes well and I don't get a puncture from the occasional glass or nail, a tube will easily last through 2 or more sets of tires. This comes out to 6,000 miles or more.
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