What is the difference between the Look Keo Classic 3 and the Look Keo Classic 3+ Pedals? The material used for the contact area. The little extra, stainless steel rather than composite, optimizes pedal stiffness and hence the transfer of power from you to your bike. As for the rest, Look stuck to what works: fast clip in / clip out and easy tension adjustment. Note: A pair of grey 4.5deg float Keo Cleats are included, cleats with more or less float may be purchased separately. Features: Large, wide contact area for added stability throughout the pedal stroke Stiff composite body helps to increase power transfer efficiency Stainless points optimize pedal stiffness Specifications: Pedal Type: Road Cleat Interface: Look Keo Cleats Included: Yes Pedal Clips: Single-Sided Clip In Pedal Configuration: Clip Only Body Material: Composite w/ Stainless Steel Contact Points Spindle Size: 9/16" (Standard) Spindle Material: Chromoly Steel Bearings: - Color: Black Weight: 280g (Pair)