Originally Posted by
Colorado Kid
On the way to work today, I had a flat. No big deal, it happens. Everything went well until I pumped up the tire. The frame pump (Blackburn) would only pump up to about 75 PSI. The tire is rated at 110 PSI. No matter what I tried, I couldn't get any more air into the tube. Yes, I'm no Girly Man, Hans. LOL Does anyone know who makes a good reliable frame pump that will get to the 110 PSI I need for these tires?
From the experience you had, It seems to me, you purchased a pump aimed primarily for fat/low pressure tires - aka Mountain Bike - they move a relatively large amount of air PER STROKE using a LARGER DIAMETER cylinder and piston (fewer strokes to achieve a given pressure in their practical working range, which for most males is 70-80 psi) SACRIFICING HIGH end pressures.
Road series pumps, designed for narrow/high pressure tires - aka Road Bike - in comparison don't move as much air PER STROKE, due to a SLIMMER Cylinder and Piston, In comparing to low pressure pumps. Needing more strokes to achieve the same pressure, while being able to reach 120-130 psi Fairly Easily.