Premium- Shimano PD-ES600 Explorer is a single-sided SPD pedal for road cycling and touring but also suitable for city use. A smooth-running release mechanism simplifies getting in and out. Ideal in combination with Shimano RT shoe models. SM-SH51 cleats and 1.0mm cleat spacers included Excellent support and stability- Stability of a traditional three-bolt system but the walking convenience of a recessed two-bolt cleat. Wider platforms also help stabilize your feet to keep them from rocking out of plane; which not only helps with power transfer; but can potentially alleviate joint stress for riders that are more sensitive to that sort of thing Smooth spinning- Shimano sealed cartridge axle bearings offers super smooth spinning and a durable steel chrome-moly spindle; which leaves you with a pedal that's as ready as you are to charge challenging terrain Light and durable- 279 g (pair). Strong aluminum pedal body and steel Chrome-moly spindle with 8mm hex wrench mount Warranty- 2 year warranty