Ergon pedals PT are platform pedals with ergonomic features. They have optimized biomechanics so there is no fatigue when pedaling with them, and at the same time, with a modified surface, they ensure grip with any shoe.this is why the PT is the only pedal to have been awarded the coveted Campaign for Healthier Backs (Aktion Gesunder Rücken e.V.). Name : PT Use : Touring, Fitness, E-Bike, SUV, Commuting Material : fiberglass Reinforced Nyloncomposite