The  Endorphin Speed 4 is a multipurpose trainer and racer which can fill many roles in your rotation. Whilst it lacks the out-right propulsion of carbon plate racers, the new winged nylon plate still has you moving along at a fair rate of knots.

Version 4 has a re-engineered winged nylon plate, reworked outsole and refined upper. The PWRRUN PB midsole foam is made with pebbled PEBA polymers, creating a lightweight midsole with exceptional energy return.