Now anyone can get the advantage of our remarkably light "Service Course™" ultralight butyl tubes. The combination of the Aircomp? Ultra-light tube's extremely lightweight and consistent Michelin quality make these an obvious choice for high performance applications.
Weight and size optimized for competition
0.7mm thick butyl
Med 41 - 55 mm
Valve Shaft Type
Presta, Presta Med 41-55mm
Well Made (1)
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4.7 GEARS 3 reviews
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These tubes have been fairly reliable. I like the non-threaded valve stems as they don't damage pump washers. The 52mm stem length is long enough for semi-aero 25-30mm rims but don't stick out too far.
I've had a couple of bad/leaky valves but I've been using these for many years so that's not unusual. I rarely flat but then my roads are relatively debris free.