hi all thanks for this. I do love my brompton, and take your points. At the moment, though, with 2 gears only, it restricts my cycling to the relatively flat locale. I don't want to add more gears, for cost and weight reasons, and just thought grips or clipless would give me a bit more oomph over hills and longer distances. Seen the grips on the web now, thanks. Not keen on drilling the existing pedals though. Guess will have to live with it.