Zoom-zoom - I think you and my husband should have a b1tch-fest together. I think he can relate. He made mention of this to me last night in car when he said that since he's missing out on all the riding he wanted to do this year because of my injury, that he should be able to dictate what we do next year. (wrong!) When I probed further, it was about me doing less triathlon and more riding with him. He's the same way, hates riding alone (but he also sucks at making regular dates to ride with other people). It's really frustrating for me when he started out all encouraging for me to take up tri, and now he's changed his tune.

ANYWAY.... the purpose of this post is to tell you that I would bet you'd be fine. Run fitness does translate to some degree, so you won't be bringing up the rear completely. You will be sore though - and not just your rear. Your shoulders, back, butt, etc...because you won't be used to being in that position for extended periods. BUT, you said that you are done after 30 miles...is that 30 miles alone? If so, then my guess is that you'll be good to about 60+ miles with company. And then you'll just have to suck it up for the last 40 or so if you want to do it. Physically, I think you can and that you won't be totally lagging behind. You may not be setting any PR's, but you aren't completely starting from scratch, either.