Dahon Mariner D8 8-Speed Folding Bike Black

The Dahon Mariner D8 is an 8-speed folding bike built for city riding, recreational use, and mixed-terrain cycling. It uses Dahon's patented folding system to collapse into a compact, portable package suited to urban commuters, boat owners, and anyone needing a bike that travels well. The aluminium frame keeps weight down to 12.66kg, making it genuinely manageable to carry or store when folded.

The engineering centres on practical, proven components. The frame is aluminium with a rigid hi-ten steel fork, and the bike uses Dahon's own 8-speed derailleur paired with matching shifters for smooth, reliable gear changes across an 11–32 cassette. V-brakes front and rear offer straightforward, predictable stopping power in most conditions. The telescopic handlebars adjust to suit different riders, whilst the Dahon Radius aluminium bar and Ergo Comfort saddle are designed to keep you reasonably comfortable on short to moderate rides. A 550–200mm adjustable seatpost handles the fit.

The 20-inch wheels with 20x1.60 tyres give the bike a responsive feel in traffic and allow the compact fold, though they do require slightly more pedalling momentum than larger wheels on longer, flat sections. The anti-corrosion treatment makes sense for coastal use or storage on boats, where salt air matters. A carrier and mudguards come fitted as standard, so the bike is ready to work without needing accessories bolted on afterwards.

The Mariner D8 works well for anyone who cycles short distances around town, needs a bike that folds into a car boot or caravan, or wants something practical without fuss. At 170mm cranks and with an 8-speed range, it's geared for gentle hills and urban riding rather than sportier pursuits. The straightforward spec means finding spares and servicing is uncomplicated, and the price sits at a genuine value point for a folding bike with this specification.