The Classic All-Steel Folding Bike. Original design refined for modern cities. The original design with the 3-part fold, handmade in our London factory since 1975. Compact and robust-it\\\'s a seriously engineered bike that\\\'s fun to ride. Although the C-Line is made to stand up to the rigours of everyday life in the city, owners have taken them on around-the-world trips, on country tours and even to the South Pole, but mainly they are used 364-days a year to improve the day-to-day (we recommend a day-off for an annual service). The 3-speed steel bike with hub gear was the first Brompton made-a solid city rider built for the streets of London. The sealed gears are protected from grit, water and impact for longer life and less maintenance. Easy-to-use hub gears let you shift when stationary making the C Line Utility a solid choice for stop/start commutes, especially in wetter cities Key Features > The original design continuously evolved since 1975 > Hand-brazed steel frame and forks > Features a front carrier block (included on every model) to carry Brompton luggage > Equipped with mudguards for all-weather riding > Mid handlebars for a comfortable and neutral riding position > 3-Speed for efficient urban riding. Specifications Frameset Frame: Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints. Fork: Steel brazed fork Wheels Wheelset: (F) Double-wall rim, 28 spokes laced to a Brompton front hub. (R) Double-wall rim, 28 spokes laced to a Brompton Standard ratio internal 3 speed rear hub with a 13 tooth sprocket. Giving a 177% gear range in a low maintenance package. Tyres: 349 x 35C Schwalbe Marathon Racer. A puncture resistant tyre with a reflective sidewall. Drivetrain Pedals: Brompton Folding left hand and non-folding right-hand pedals Crank: (6061) forged aluminium crank with 50T chainring and integrated chainguard. Front Derailleur: n/a Rear Derailleur: Sturmey Archer 3 Speed rear hub Shifters: 3 speed Trigger shifter. Bottom Bracket: Square taper bottom bracket. Components Handlebar: Triple butted (6061) aluminium handlebar with shot peened finish. Grips: Lock-on grips with soft-compound rubber adhered to an engineered core. Headset: Brompton headset. Brakes: Brompton Dual Pivot Calipers. Saddle: Brompton saddle with integrated carry handle (147mm). Incorporates a mount for a Brompton rear light and saddle bag. Seatpost: Chromoly steel tube, centreless ground, chrome plated for hardness, delivered in a standard length.