This is the bike for those who seek out high adrenaline thrills – a performance cruiser that is dark and muscular – the Suzuki M109R B.O.S.S. (blacked out special Suzuki). This bike has a powerful V-twin engine using some of the largest pistons in the industry. The 109 cubic-inch engine is wrapped with aggressive blacked-out styling that includes slash-cut mufflers, drag-style bars, a supplied solo seat cowl, and a distinctively shaped headlight nacelle that’s uniquely Suzuki.
The cruiser is not just about looks as stout inverted forks, a hidden single-shock rear suspension, and an ideally designed saddle delivers responsive handling and an exceptionally comfortable ride. Performance never looked so good, or so dark. The 1783cc, 8-valve DOHC, 54-degree, liquid-cooled, V-Twin engine is designed to produce a massive tractable power and responsive torque. The huge 4.4 inch (112mm) forged aluminum-alloy pistons are one of the largest reciprocating gasoline engine pistons being used in any production passenger car or motorcycle, while featuring a race-proven design to reduce friction and inertial mass.
Each of the large cylinders is lined with Suzuki’s race proven SCEM (Suzuki Composite Electrochemical Material) for optimum heat transfer, tighter piston-to-cylinder clearances and reduced weight. Suzuki Advanced Sump System (SASS), a compact dry sump lubrication system, provides reduced engine height, a lower crankshaft position and a lower center of gravity. Suzuki’s class-leading electronic fuel injection system features the Suzuki Dual Throttle Valve system (SDTV) with 56mm throttle bodies, which maintains optimum air velocity for smooth low to mid-range throttle response. A unique two-stage cam drive system creates a compact cylinder head design, reduces overall engine height and creates a lower center of gravity.
A dual spark plug per cylinder ignition system is controlled by a powerful 32-bit ECM for improved combustion efficiency and reduced exhaust emissions. A three-piece, 9.5-liter volume airbox (with dual intakes) includes two pleated fabric air cleaner elements located on both sides of the engine. The 2-into-1-into-2 stainless steel blacked-out exhaust system features Suzuki’s digitally controlled SET (Suzuki Exhaust Tuning) system for optimum engine performance and a powerful V-Twin sound. Sculpted engine features blacked out engine covers that complement the visually striking cylinders with symmetrical, high-lighted cooling fins.
A wide-ratio, constant-mesh five-speed transmission features a high fifth gear ratio for relaxed highway cruising. Low-maintenance shaft drive is clean-running and has minimal torque reaction as it efficiently transmits power to the massive 18-inch rear tire. A high-tensile double cradle steel frame is built to comfortably handle all the power and torque while delivering agile handling and a plush, smooth ride. The massive 240/40 x 18 is the widest rear tire ever used on a Suzuki motorcycle. Blacked-out, inverted front forks feature race-proven cartridge internals with 46mm stanchion tubes and provide 5.1-inches of smooth wheel travel.
Flat-bend, drag-style handlebars are mounted on pull-back risers to be positioned within a short distance from the seat to improve the rider/machine interface, aiding comfort and control. The long-stretch fuel tank holds a full 4.9 gallons of fuel. The instrument cluster features a digital tachometer, gear position indicator and LED indicator lights are integrated into the top of the headlight cowl. Both rider and passenger seats are made for comfort as they allow freedom of movement and accommodate riders of different sizes, and are well cushioned. A sporty solo-seat cover (included) can be quickly swapped for the passenger seat for an even more aggressive look or for use on solo rides.