Knee-friendly: the new active-pedalFreedom starts at the foot: Previous studies have been able to prove that releasing the axial rotation by 10° on clipless pedals can reduce the potential of overuse injuries in the knees. Based on this concept, the 502 active-System pedals had been developed: the first active pedal on the market for a knee-friendly, ergonomic foot position. The SQlab 502 active pedal is the first city pedal with lateral freedom of movement and good grip at the same time. Four different axle lengths ensure a physiologically natural foot position on the pedal. This prevents one-sided loading - especially in the case of fibula head syndrome. + The first active pedal on the market+ Knee-friendly+ includes reflectors (meets the German road traffic regulations)+ 4 axle lengths and a natural foot position