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(More customer reviews)I purchased my first road bike in 25 years this Summer, and prepared for the inevitable flat by carrying a spare tube, tire irons, and this Blackburn AirStick 2-Stage pump. After 250 miles, there it was...a rear tire causing me to swerve suddenly. Gulp. Will the pump hold up after all?
The short answer is that the 2-stage mechanism really worked. With the pump switch set at "low", I was able to fairly quickly inflate the newly installed tube to full size and reasonable thumb-pressure firmness. This was maybe 60 lbs pressure, and maybe it took 60 strokes. Switching to "high" on the pump end, I tested to see how firm the tire could really get. On this setting, each stroke delivers only a small volume of high pressure air, but it makes a difference. After about another 60 strokes, the tire was quite firm to the touch (and I'm estimating that it resulted at about 100 psi). For getting back on the road, this was fine.
Would I use this as my everyday pump? Of course not. Is it adequate to get you going again? Most definitely.
Obviously, I can't comment on its longevity at this point, but I'm satisfied so far. As to the mounting...the clip mount and elastic closure appear durable enough. The supplied mounting clip fits beneath a water bottle cage's threaded openings, and longer screws are provided. Mine is mounted on the seat tube, away from the drive-train side (left crank), just above the front derailleur moung. I have no problems with rattling or any sense that it could become loose.
It's also compact enough to simply slip into a rear jersey or jacket pocket, if you choose. I wouldn't recommend this pump for larger volume, lower pressure hybrid or knobby tires, as you'd be pumping forever. Buy a larger frame pump for that purpose.
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