Weighing less than the equivalent all-steel model, Brompton P Line Folding Bike is lightweight performance, folded and unfolded. This meticulously engineered machine thrives on city roads with its titanium rear frame and forks and the all-new suspension block. Next-level componentry and enhanced portability features make this folding bike faster to ride, lighter to carry and easier to move around the city in every way.Invented by our founder, Andrew Ritchie, in 1975, expertly engineered to transform the bike into a small, locked package a little larger than its wheels - all in under 20-seconds. Nothing folds like a Brompton folds.Brompton P Line Folding Bike HighlightsMain Frame Precision drawn heat-treated steel tubing with hand brazingRear frame Superlight Advance rear frame made from Titanium with a replaceable hangerFork Titanium fork with a threaded headset