Quote Originally Posted by mimitabby View Post
and then there's Kit that just did 100 miles on a mountain bike. As long as you are happy with and comfortable with your bike, honestly, it can do anything you want it to.
ON THE OTHER HAND, if you get bike lust, buy a bike that is made for the kind of riding you hope to do.
it was 100 km....

but I really appreciate the faith you have in me

I think if it's comfortable, do it. ...if it's not *made* for the purpose, then try it yourself a few times before the event to make sure you'll be comfortable.