The PD-R550 is a User-Friendly Road Bike Pedal: Durable and lightweight SPD-SL pedal for all types of riders Customizable Engagement & Release: Wide spring tension adjustment range so you can find your perfect clip in and out Ideal for Beginners: Larger entry target is great for anyone new to clipping in and cleat design ensures confidence when you're off the bike Efficient & Stable: Extra-wide platform and wide bearing placement increases stability and power transfer Durable Reliability: Stainless steel body plate and sealed bearings for long-lasting performance