2012–2016 Harley-Davidson Police Twin Cam 103 (FLHP Road King)

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The 2012–2016 Harley-Davidson Police Twin Cam 103 (FLHP Road King)** is a purpose-built law enforcement motorcycle manufactured by Harley-Davidson for use by police departments and government agencies across North America. Based on the civilian FLHR Road King platform, the FLHP model incorporates numerous modifications designed to meet the rigorous demands of patrol duty. This specific generation is notable for its use of the air-cooled Twin Cam 103 engine, which provided a significant performance upgrade over its predecessor.

The primary distinction between this model and the preceding police versions (pre-2012) was the transition from the Twin Cam 96 engine to the more powerful Twin Cam 103. The increase in displacement from 96 cubic inches (1584 cc) to 103 cubic inches (1690 cc) resulted in a noticeable boost in low-end torque. This enhancement was crucial for police applications, providing officers with improved acceleration for traffic stops and pursuit situations, especially when the motorcycle was fully laden with equipment. Paired with the 6-speed Cruise Drive transmission, the powertrain was optimized for a balance of city patrol and highway performance.

Purpose-Built Modifications for the Harley-Davidson Police Twin Cam 103

Unlike civilian models sold to the public, the FLHP Road King was engineered from the factory with a suite of features tailored specifically for law enforcement service. These modifications were not simply aftermarket add-ons but integrated components that enhanced the motorcycle’s reliability, safety, and functionality as a patrol vehicle.

Electrical and Charging System

One of the most critical upgrades was the electrical system. The FLHP was equipped with a high-output charging system to support the continuous power draw from emergency lighting, sirens, communication radios, and other onboard police electronics. The wiring harness was designed with dedicated circuits and easy-access points for agencies to install their specific equipment packages without compromising the motorcycle’s core electrical integrity.

Ergonomics and Rider Interface

Rider comfort and control during long shifts were prioritized. The FLHP featured a unique air-ride solo saddle, allowing an officer to adjust the seat’s firmness for optimal support. The handlebars were positioned for a more upright, commanding riding posture compared to many civilian touring models. Furthermore, the bike was fitted with full-length footboards, providing a stable platform and allowing the rider to shift their foot position to reduce fatigue. The saddlebags were equipped with a special one-touch latch mechanism, designed to be easily operated by a gloved hand.

Chassis and Durability

To withstand the rigors of daily patrol, the chassis and key components were reinforced. The FLHP included heavy-duty engine guards, often referred to as “crash bars,” which protected the engine and the rider’s legs in the event of a tip-over. The clutch was upgraded to a heavy-duty unit to handle the frequent stop-and-go nature of police work. Many departments also opted for pursuit-rated, run-flat tires to ensure vehicle control could be maintained even after a puncture. The suspension was tuned to handle the additional weight of police gear, providing a stable and predictable ride under various conditions.

Service and Application

The Harley-Davidson FLHP Road King became an iconic vehicle for motor patrol units in the United States and Canada. Its commanding presence, distinctive V-Twin sound, and “Made in America” heritage made it a popular choice for many agencies. It was valued for its durability, relative ease of service, and the extensive dealer network available for parts and maintenance. This generation served until it was eventually succeeded by models featuring the newer Milwaukee-Eight engine, but the Twin Cam 103-powered police bikes remain a common sight in both active service and the civilian surplus market.

Specifications Table

General
Brand Harley-Davidson
Model FLHP Road King (Police)
Model Class Police / Touring
Model Year 2012–2016
Type Law Enforcement
Gross Vehicle Weight Rating 1360 lb. (617 kg)
Maximum passengers 1 (Solo Saddle)
Performance
Max. power Approx. 85 Hp (63 Kw) @ 5010 RPM
Max. torque 101.8 ft-lb (138 N•m) @ 3500 RPM
Min. turn diameter 22.1 ft (6.7 m)
Top designed speed Approx. 105 mph (169 km/h)
Size
Length 95.1 in. (2416 mm)
Width 37.6 in. (955 mm)
Height 59.1 in. (1501 mm)
Wheelbase 63.5 in. (1613 mm)
Seat height 30.7 in. (780 mm) (Laden)
Ground clearance 5.1 in. (130 mm)
Curb weight Approx. 840 lb. (381 kg) (In-service weight with equipment)
Engine
Type Air-cooled, Twin Cam 103™ V-Twin, Four Stroke
Displacement 103.1 cu in (1690 cc)
Bore × Stroke 3.87 in. × 4.37 in. (98.4 mm × 111.1 mm)
Compression ratio 9.7:1
Starting system Electric starter
Fuel supplying system Electronic Sequential Port Fuel Injection (ESPFI)
Ignition control system ECU Ignition
Lubricating system Pressurized, dry-sump with oil cooler
Oil capacity 4 qt (3.8 L)
Engine oil type SAE 20W-50 Harley-Davidson H-D 360 Motorcycle Oil
Coolant type N/A (Air-cooled)
Idle speed 1000 RPM ± 50 RPM
Transmission
Transmission type 6-speed Cruise Drive®, manual gear shift
Clutch type Wet, multi-disc, manual (Heavy-duty)
Driving system Belt drive
Primary reduction ratio 1.353
Final reduction ratio 2.125
Gear ratio 1st: 9.311; 2nd: 6.454; 3rd: 4.793; 4th: 3.882; 5th: 3.307; 6th: 2.790
Chassis
Tire size Front: D408F 130/80B17 65H; Rear: D407 180/65B16 81H
Rim size Front: 17 in.; Rear: 16 in.
Capacity of fuel tank 6.0 gal (22.7 L)
Fuel consumption Approx. 42 MPG (5.6 L / 100 km)
Electric
Battery 12V / 28 Ah
Charging System Three-phase, 45-amp system (585W @ 13.5V, 2000 RPM)
Headlight Halogen 55W low beam, 60W high beam
Shock Absorbers
Front suspension 41.3 mm telescopic forks
Front travel 4.6 in (117 mm)
Rear suspension Air-adjustable shocks
Rear travel 3.0 in (76 mm)
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