This pedal replaces the Candy SL. It is nominally 6 grams heavier, but replaces the Candy SL's composite body with a more durable stainless steel one. I found the pedals smooth when cruising, and stable while climbing the 16% grade Target Rock road on my 1984 Pinarello fixie. Doing this grade on a fixed gear was another step in my recovery. I want to do all that I could before and then some.