Look KeO Classic 3 Pedals Simple to use, it is possible to adjustment the cleat entry/release tension to low for an easy clip out. Its large and wide contact surface provides excellent pedaling stability. The Kéo Classic 3 spindle is made up of an oversized steel axle with miniature ball bearings (12 mm inside x 18 mm outside) and a needle bearing cartridge for improved wear resistance. A spacer is used to hold the needle bearing cartridge in place. LOOK spindles are only approved after a rotational test of 2 million cycles at 100tr/min with a load of 90kg on the center of the pedal and an eccentric rotation (creating a shock on each rotation). This test is far more grueling to the current industry standard, the EN14781. The new classic two has 400 mm² surface area which is almost 40% more than the competition. The significance of this is the load is spread around the cleat rather than having a small concentrated area, which improves comfort and reduced foot discomfort.