The steel version Columba 20" wheel model appears to be a close copy of the Pashley Fold-It 7, a Klapradder-type folder designed by Cresswell, one of the most rugged can-do-it-all folders ever built but discontinued around 2007 as the tidal wave of China folders began to strike. The worst criticism about the Columba 20" appears to be that the gearing may suit the more sedate rider and this means that it is rather slow. For the 26" wheel alloy model, the cheap plastic brake levers attract plenty of comment. If you need to carry your bike up stairs, alloy is worth considering but may lack the endurance and ride quality of the steel model.