Narrow Mid-Wheel Drive. 6mph Performance. ✔ Capable 6mph Performance. ⚡ QUANTUM EDGE 3 STRETTO POWERCHAIR ⚡. ???? PRODUCT OVERVIEW – QUANTUM EDGE 3 STRETTO ????. ????Powerchair Ref: 2959. With the main drive wheels positioned centrally beneath the user, the chair turns naturally around its centre, providing an exceptionally intuitive and responsive driving experience.
