got some of these babies on the way from paragon machine works! chainstay disc mount dropouts with integral rack mounts and replaceable 7005 derailleur hangers. if you have a travel bike on order with me let me know you want a pair and i'll pull them out of the stack. there will be a $60.00 upgrade on these items. i doubt they are at all light, but they look like material has been removed in all the right places to make them resonable, and if you are getting a touring bike then weight is a pretty moot point anyway......cool stuff! steve.