The Bonhams February sale is about to wrap up, so we’re taking a break from our regular scheduled programming to pick our favorite motorcycles from the auction. From an Ariel Square Four and a 1989 Kawasaki ZX-10, to Hans-Otto Butenuth’s BMW 500 Rennsport [above], here are seven classic motorcycles that we’d love to park in the Bike EXIF garage.

1907 Quadrant In the early 1880s, two blokes by the names of Walter and William Lloyd patented a pedal tricycle steering mechanism, which they (very confusingly) called the ‘Quadrant.’ Anyway, Quadrant went on to make bicycles, tricycles, and motorcycles, and, by 1901, had emerged as one of Britain’s earliest motorcycle manufacturers.
This 453 cc Quadrant was originally built in Coventry and was meticulously restored by a previous owner. It showcases its history through hand-written notes, technical drawings, old registrations, marque-related literature, and an SMCC Pioneer Certificate.
The notes detail an engine swap, with the current engine outlined as not original, but period correct. This is backed up by copious notes and with the original engine cases (serial numbered 3432) included in the spare parts list.
The previous owner fitted a centrifugal clutch and a later-model carburetor, with Bonhams describing the modifications as ?practical for riding.? Which we guess is true, if you?re used to riding an extremely heavy, but pretty, bicycle. [More]

1950 Ariel Square Four 4G Mark I Of all...