Fair enough and thanks for the advice. I had a feeling they weren't ideal but I liked them so much I had to check. If 77lbs is overkill, how much am I looking to support on the rear racks? Is is worth the price to pay for a nice rack or am I better off putting than money into the bike somewhere else?
Speaking of, are these (
http://www.rei.com/product/833203/seattle-sports-titan-1500-panniers-pair-special-buy ) panniers suitable? I've been looking at the Ortlieb Classics and while they hold a little more they are also significantly pricier.
Thanks again for all the help!