The E-Pump Pro 2. 0 swaps valve adapters for a single tool-free head that switches between Presta, Schrader, and needle valves. A digital gauge tracks PSI in real time up to 120, while the pump gets there in under three minutes, running off a 7. 4V battery pack that recharges in 45 minutes over USB-C. At 4. 8oz, it disappears into a jersey pocket or saddle bag until a flat calls for it. What Our Gearhead(R) Experts Are Saying:"I flatted on a group ride and had it back to riding pressure before the group finished refilling water bottles. Switching from Presta to Schrader took one twist, no adapter buried in a saddle bag."