I flatted this weekend and used my medium Lezyne Road Drive for the first time. I had to work hard get my tire inflated to 80 PSI. For me weighing 150 lbs that was fine and I was
able to complete my ride. Other mounted pumps I've had in he past I was lucky if I got up to 60 PSI so I'm pleased with the performance of the Lezyne pump.
macd55