Classic BMW R100S Undergoes Custom Therapy, Receives Performance Upgrades

The gifted aftermarket artists over at Switzerland's Meister Engineering are no rookies when it comes to modifying Bavarian beasts of all shapes and sizes.

As you browse the firm's extensive portfolio, you'll run into a plethora of bespoke masterpieces that'll leave you speechless. The exploit we'll be examining today is among the sexiest machines born under this workshop's roof.

At its core, the venture in question is a 1977 model from BMW's R100S lineup. This bad boy is put in motion by an air-cooled boxer-twin powerplant that prides itself with a colossal displacement of 980cc. The four-stroke engine is fully capable of delivering up to 70 wicked horses at 7,000 rpm, along with 56 pound-feet (76 Nm) of crushing torque at around 6,000 rpm.

A five-speed gearbox is tasked with allowing the mill's force to reach the rear 18-inch hoop by means of a shaft final drive. Ultimately, this whole shebang enables BMW Motorrad's fiend to achieve a respectable top speed of 119 mph (191 kph). Without going into any other details, it's quite safe to conclude that Bavaria's R100S is no toy.

As to Meister's one-off creature, the very first thing they attended to was the bike's aging powertrain. Thus, the boxer-twin behemoth received a state-of-the-art cylinder kit from Siebenrock and a lightweight flywheel, as well as a fresh camshaft, a modern oil cooler, and a top-shelf ignition setup to bring it all to life. You will find a pair of Dell'Orto carburetors helping the engine to breathe with ease, joined by a stainless-steel exhaust system and reverse megaphone mufflers on the other end of the combustion cycle.

Next, the original bodywork items were discarded to make way for a tasty selection of custom alternatives. At the front, we notice a handsome fairing that wraps around the fork legs, while the rear end is adorned with a unique subframe unit supporting a slim tail section and an LED lighting strip. In between, the moto surgeons installed a neat gas tank.

Furthermore, the frame and swingarm have been flawlessly nickel-plated in-house. The rear suspension duties are taken good care of by top-grade dual shock absorbers from Bitubo's catalogue, and to bring about a meaner riding stance, Meister added a set of aluminum clip-on handlebars and rear-mounted foot pegs. Lastly, the clutter-free cockpit features a single Motogadget gauge that sits atop a tweaked top clamp.