Originally Posted by Josh972
Is the wrench force mini pump okay to use on a commuter bike with schrader valve tubes? Or will a pump with out the flexible hose puts stress on the tube? Will my Wrench Force Mini Pump be adequate for a pressure range of 40-85 psi or is that going to be difficult? Thank you and sorry about the newbie questions.
Yes the pump will be fine for schrader valves. It's not the best but it will work fine. Pumps with hoses, like the Topeak Morphs, are a little easier on the valve since you aren't pushing on the valve while you fill the tube like a traditional frame pump. The best thing about the Morphs is that you can push all the pumping force into the ground which makes them easier to pump.
I don't know about the pressure since I'm not familiar with your pump. 40 psi with a small hand pump is doable. 85 psi takes a lot longer.