25 years after the introduction of their sporting, and championship winning R90S, BMW introduced the R1100S. Adorned with sportbike accoutrements like clip-on handlebars, a cowl over the pillion seat as a seat-hump, sexy exhausts exiting under the seat á la Ducati 916, and rear-set footpegs, the 100bhp tourer turned crotch-rocket.
The engine is standard BMW flat, or ‘boxer’ twin in “oilhead” configuration, or air-cooled cylinders with oil-cooled heads. Derived from the BMW R1100RS, the 1,085cc fuel-injected 8-valve engine is tuned for a maximum output of 98 horsepower at 8,400rpm, 8 more than the RS. At the time of its introduction, it was BMW’s most powerful boxer engine ever made, and the first mated to a six-speed transmission. The ohv engine has chain-driven camshafts mounted in the cylinder heads, operating the valves via short pushrods and rocker arms.
In addition to using the engine as a stressed member, the R1100S has a composite aluminum frame to which the suspension components are attached. The front suspension is BMW’s Telelever, with its pivoting wishbone and monoshock. The R1100S has a very substantial half fairing which completely envelops the alloy fuel tank, while front fender is made of carbon-fiber.
The 1100S on offer here hails from an international collector. He kept a handful of bikes in the Los Angeles area for when he and select friends would fly in and enjoy trips up PCH or across the desert. Each bike was meticulously stored at a shop with in-house mechanic to keep them in top riding condition. His collection at home is beyond phenomenal and with hundreds of bikes through all eras over the last 130 years, from all corners of the motorcycle manufacturing world. As such, the BMW here, in yellow and silver livery, is in fine riding condition. Showing 43,800 miles from new, the bike is fresh from a service to ready it for sale. It starts easily, idles smoothly, and has great power from the flat twin. The bike shifts smoothly through all six gears, brakes well and all electrical systems work as they should. Cosmetically, the bike is in excellent condition with minor wear, conducive with age and mileage.
The bike comes with a clean, clear California title. California resident buyers: the motorcycle has been placed in non-op status at the DMV so as to not incur any further registration fees.