Much as I love my Brompton, the truth is I have her for the train. I have tried this winter to put some miles in on her by cutting out part of the train journey and whilst it's fun it can be hard(er) work after about ten miles and I can't manage my full home to work leg (32 miles) without it being arduous. So, what I'm looking for is a full sized folder (26" or therabouts) that will satisfy the train company (they don't care as long as it folds) that I can use for longer stretches work to home. I don't want to spend the earth but I'm quite happy to upgrade certain components (e.g. wheels, tyres) to make it a more roadworthy machine. I can and do use the non-folder for this purpose but it means travelling on the train out of peak hours which rarely happens. Any ideas on make/model? Quite happy with second hand if there's a market.