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. Bike Sizing Choosing the bike size depends on the type of bike, your height, your riding style, and your preference. A correct fitting bike will be more comfortable, more efficient and more fun to ride. This bike size guide gives our customers general advice on choosing the right size. Although we always recommend visiting one of our stores or contacting one of our experts. XS S M L XL XXL Rider Height 4\\\'6 - 5\\\'2 / 137cm - 157cm 5\\\'1 - 5\\\'4 / 155cm - 162cm 5\\\'4 - 5\\\'8 / 162cm - 170cm 5\\\'7 - 6\\\'0 / 170cm - 183cm 6\\\'0 - 6\\\'3 / 183cm - 192cm 6\\\'3 - 6\\\'6 / 193cm - 203cm