oldgit, I recon the Mmbop would be just the ticket. The Inbred 456 would do nicely as well. Both designed by the same bloke, the 456 is a terrific bike. I have a prototype developement of it which takes up to a 7″ fork, and I’ve put a 6″ travel Nixon on, and it rides like a dream, just feels ‘right’. The Mmbop has some neat features, like the chainstay design that avoids chainsuck issues. Go for steel or Ti, you’ll appreciate the slight “give” in the frame, and get rims that will take a 2.3″ tyre, as that will also give a ride your arse will thank you for. I’m 54, so I think I have a good idea what you’ll find comfortable. There’s a thread a page or two back I think was called ‘show us your steel bikes’, or something like that, and there’s a pic of my 567 on there to give you a clue. I’ll try and post it up, but I’m posting from my phone, so it’s a bit of a phaff. 😀