Dahon Folding Bike

The Dahon Mu D9 is a 20-inch folding bike built for urban commuting and the kind of cycling that involves juggling transport options. It uses Dahon's established folding system with a quick-release mechanism that collapses the bike into a compact package suitable for car boots, office storage, or taking on train journeys. The whole thing weighs around 11.72kg, which is light enough to carry when folded but still feels substantial under you when riding.

The frame is built from lightweight aluminium with a rigid structure that resists flex, keeping the ride responsive even when you're pushing through traffic or tackling rougher urban surfaces. The 9-speed drivetrain—either Shimano or SRAM depending on the year—gives you enough gears to handle hills without becoming fiddly, whilst the 20-inch wheels fitted with high-pressure tyres roll quickly and feel lively through corners. V-brakes provide straightforward stopping power, and a magnetic folding latch keeps everything secure once the bike is collapsed.

Where the Mu D9 works best is in mixed-mode commuting. The compact folded size means you can actually take it on the bus or train without becoming that person holding everyone up, and the responsive feel when riding means you don't feel punished for choosing a smaller wheel size. Fenders and rack mounts are often included depending on the model year, which adds genuine practicality for everyday use rather than weekend riding. The bike handles a maximum rider weight of around 105kg, and day to day it suits commuters who need portability without sacrificing too much ride quality, or anyone who simply doesn't have space for a full-size bike at home or work.