I researched both when I was replacing my pedals this year, and to the best of my knowledge, the NEW Dura Ace -SL pedals are compatible with the NEW Ultegra -SLs. BTW, I really like my Dura Ace's.

They are pretty much the same pedal, DA is slightly lighter and does not have a polished finish. I have the Ultegra pedal, works great and looks great. Cleats are easy to walk in.

I've been getting a little soured on my Looks of late (with all the squeaks they make when it's the least bit humid or wet out) and was wondering if the Ultegra pedals have this problem...maybe it's time for a switch.

I have the DA pedals on my tri/TT bike, and the ultegra pedals on my road bike. They are completely interchangeable. I love them, they have a nice wide platform, no hot spots. The cleats are easy and comfortable to walk in.

I'm still confused as to the price difference between them. I honestly can't see a reason to get the DA pedals. They feel and perform identically, and at 50% more, it's hard to justify the DA pedals which only save 23grams (I got the DA pedals last year before the Ultegra model was available).

Scott

Hot spots from my speedplays is why I tried these pedals. The change to Shimano made a BIG difference. And my attack angle has imporved (presumeably because my foot is closer to the axel). People argue that the pressure excerted by speedplay pedals is spread out by the platform it clips into. This is definitely not the case for me.

Thanks for the help. I'm going to get a second pair for my other bike.
Bill