To all those that worry about Campy being a light weight I use Campy Record components for my entire tandem. From the pedals to the RD including the chains. I have never had any issues and never had anything break. They are the aluminum cranks [timing] and a triple 10 speed drive. Working with the public I understand that there are issues with being sued. I think it is funny how some feel that going over on tire pressures [over what is written on the sidewall] is OK but going over on the factory weight specs is not. Either way most items that are not used for what they are designed for may cause issues in the future. I sure would think that the engineers [lawyers] would surely have a cow if they knew that the dual pivot Records were slowing down me and my son on a 50 mph run on our tandem. I am not saying that the stuff is worth the price or that they will hold up, just that they work for us.