Originally Posted by
T-Mar
And the SL pedals get even lighter as they age, due to the high wear rate of the aluminum cages! They really should have been re-designed with a replaceable cage but that would have mitigated the weight savings and replacement sales. Still, my aluminum cage MKS Unique clones don't wear nearly as fast.
Pretty sure the cages on SL/SR pedals are Dural. I've drilled into a few pairs and that stuff is tough! First, the anodizing - much thicker than any other on similar pedals (black anodizing from both my Barellis and Suntour Superbe pedals wore through to silver after less than one hundred miles) - is stronger and the Dural beneath is at least as high on the Rockwell scale as the numbers provided for Campy's chainrings. High wear rate of these cages can only equate to extremely high mileage - or metal cleats. My views based on 25+ years of experience using Campy SL/SR pedals in both road and track models.
DD