No published weights for these new racks yet but I sent an e-mail asking for that info. Will post as soon as I hear something.
Update: well, the reply to my e-mail asking for weights was “1.5 pounds”. This is disappointingly imprecise; I expected better. However, I discovered that a different page on the OMM site lists the Cold Springs weight as 610 grams. I’d imagine the Pugsley specific rack differs mainly in the attachment hardware, so this should be close to the truth.