2025 Suzuki Boulevard M109R

2025 Suzuki Boulevard M109R – The Ultimate Power Muscle Cruiser

An absolute alpha on the asphalt. The 2025 Suzuki Boulevard M109R remains the undisputed heavyweight champion of the performance cruiser world. Merging unmistakable, low-slung custom styling with absolute, raw sportbike engineering, this machine is custom-built for riders who demand massive torque, an aggressive street presence, and a bike that completely commands the road.

Drenched in the deep and predatory Glass Sparkle Black premium factory paint, this gorgeous, pre-owned muscle cruiser has only logged 2,620 miles. From the distinctive chrome headlight nacelle down to the massive slash-cut mufflers, it sits in flawless condition and is ready to tear up the highway.

 Comprehensive Technical Specifications & Mechanical Metrics

Massive 109 Cubic-Inch V-Twin Powertrain

• Engine Type: 1,783 cc (109 cu. in.), 4-stroke, liquid-cooled, DOHC, 54-degree V-twin

• Valves: 4 valves per cylinder (8 valves total)

• Horsepower: 123 hp @ 6,200 rpm

• Torque: 118 lb-ft @ 3,200 rpm

• Bore x Stroke: Massive 112.0 mm X 90.5 mm (4.409 in. x 3.563 in.)

• Industry-Leading Pistons: Features huge 4.4-inch forged aluminum-alloy pistons—some of the largest reciprocating gasoline engine pistons used in any production vehicle in the world, utilizes a race-proven design to drop inertial mass and friction.

• Compression Ratio: 10.5:1

• Fuel System: Electronic Fuel Injection with Suzuki Dual Throttle Valve (SDTV) system, ensuring smooth, highly responsive power delivery and clean throttle response even at low RPMs.

• Dual Spark Ignition: Features two spark plugs per cylinder controlled by a high-capacity 32-bit ECM to optimize combustion efficiency and lower emissions.

• Two-Stage Cam Drive: Unique two-stage cam drive system creates an ultra-compact cylinder head design, effectively reducing overall engine height and lowering the bike’s center of gravity.

• Lubrication System: Semi-dry sump layout.

Drivetrain & Gearbox

• Transmission: Wide-ratio, 5-speed constant mesh manual transmission, featuring a high fifth gear ratio engineered specifically for relaxed, low-RPM highway cruising.

• Clutch: Wet, multi-plate type.

• Final Drive: Clean, low-maintenance, high-durability Shaft Drive. Engineered to minimize torque reaction as it efficiently channels the massive V-twin power directly to the rear tire.

Chassis, Suspension & Handling

• Frame Architecture: High-tensile steel double-cradle frame engineered to handle the massive torque loads while preserving an agile, predictable steering response.

• Front Suspension: Stout, race-proven 46mm inverted black telescopic front forks featuring cartridge internals | Travel: 5.1 in.

• Rear Suspension: Link-style progressive linkage swingarm paired with a hidden, solo rear shock absorber, giving the bike a clean, custom “hardtail” look. Features adjustable spring preload to easily adapt to rider and passenger weight configurations | Travel: 4.6 in.

• Handlebars & Ergonomics: Flat-bend, drag-style handlebars mounted on premium pull-back risers, positioning the controls closer to the rider to maximize comfort, machine feedback, and steering leverage.

Brakes, Wheels & The Widest Footprint

• Front Brakes: Race-derived dual fully floating front disc-brakes clamped by radial-mounted, dual-piston calipers (inspired directly by Suzuki’s GSX-R high-performance sportbikes) for world-class stopping performance.

• Rear Brakes: Single hydraulic disc brake paired with a dual-piston caliper.

• Wheels: Sleek cast aluminum alloy 18-inch wheels at both ends.

• The Massive 240 Rear Tire: Rides on high-performance tubeless radials (Front: 130/70R18 M/C | Rear: Huge 240/40R18 M/C). The low-profile 240mm rear tire is the widest rear footprint ever fitted to a production Suzuki motorcycle, delivering immense rear-end traction and an unforgettable rear profile.

Dimensions & Capacities

• Overall Length: 96.5 in. (2,450 mm)

• Overall Width: 34.4 in. (875 mm)

• Overall Height: 44.5 in. (1,130 mm)

• Wheelbase: Long and stable 67.3 in. (1,710 mm)

• Ground Clearance: 5.1 in. (130 mm)

• Low Seat Height: 27.8 in. (705 mm)

• Curb Weight: 764 lbs (347 kg) in full running order

• Fuel Capacity: 5.2 US Gallons (19.5 Liters) long-stretch fuel tank

 Custom Styling & Cockpit Instrumentation

• Muscle Bike Styling: Imposing muscle-cruiser silhouette highlighted by a supplied solo seat cowl, a aerodynamic headlight nacelle, and beautiful symmetrical cooling fins highlighted on the blacked-out cylinders.

• Dual Instrument Layout:

  • Tank-Mounted Console: Streamlined analog speedometer housed beautifully on the long-stretch tank, complete with an LCD odometer, dual trip meters, fuel gauge, and an onboard clock.

  • Cowl-Mounted Cluster: A digital tachometer, gear position indicator, and LED indicator lights are seamlessly integrated right into the top of the headlight cowl layout for immediate visibility.

• Premium Lighting: Powerful 12V 60/55W H4 front headlight assembly paired with a bright, ultra-clean integrated LED tail light layout.

⚠️ A clean, low-mileage 2025 M109R is an absolute rarity. Boasting just 2,617 original miles, spotless Glass Sparkle Black paint, and a massive price savings from buying brand new, this legendary power-cruiser is priced to roll out immediately.