SPD-SL road pedal for entry level use at a value for money price Lighter spring tension optimized for beginner riders Wide pedal platform for improved foot/pedal stability Low maintenance sealed cartridge axle unit The low profile platform with open design allows for easy access and cleat adjustments Easy to clip into and release but with stable fit for maximum power transfer to the pedals Wider cleat and binding mechanism for better shoe/pedal contact than traditional SPD systems