The difference between the 7750 and 7800 is cosmetic. Different tone finish. I have one of each, no difference in function. I have used Look before I got the Shimano pedals, and notice a more defined click when clipping in. But I don't miss the squeek of old Look pedals. Just a matter of taste IMO.g-Bike said:Any thoughts? has anyone used both? I am currently using the 7750's SL and am thinking about something new. Please provide what feedback you can thanks.