| Specification | Data |
|---|---|
| Model Year | 2017 |
| Engine Type | Evolution® V-Twin (Air-cooled) |
| Oil Specification | 20W50 (2.65 L) |
| Front Tire | 130/90B16 67H |
| Rear Tire | 150/80B16 77H |
| Tire Pressure (F/R) | 2.48 bar (36 psi) / 2.76 bar (40 psi) |
| Battery Type | 65958-04C |
| Spark Plug | HD 6R12 |
The 2017 Harley-Davidson XL1200CB Sportster 1200 Custom Limited B represents a significant milestone in the Evolution engine’s history. While most Sportsters are known for their lean profiles, the ‘Limited B’ variant was engineered with a ‘Fat Custom’ aesthetic, featuring a wide front end and beefy tires that historically were reserved for the larger Softail cruiser line. This specific Euro 4 iteration necessitated advanced fuel mapping and exhaust catalysis to meet stringent emissions without sacrificing the signature V-Twin torque.
Engineering & Performance
At the heart of the XL1200CB is the 1202cc Evolution engine. This powertrain is a masterpiece of longevity, utilizing aluminum heads and cylinders to improve cooling efficiency. The Euro 4 compliance in the 2017 model year introduced a more sophisticated closed-loop EFI system, ensuring precise throttle response and optimized fuel consumption. The ‘Limited B’ distinction includes blacked-out styling and Mini-Ape handlebars, which significantly alter the rider’s ergonomic triangle compared to the standard 1200 Custom.
Maintenance Guidelines
As the Editor-in-Chief of MotoSpecsLab, I cannot overstate the importance of using the correct lubricant for this air-cooled mill. The 2.65 liters of 20W50 oil serves both as a lubricant and a primary coolant. Given the thermal stresses of an air-cooled V-Twin, synthetic blends are highly recommended for high-ambient temperature riding.
- Ignition: The use of HD 6R12 spark plugs is mandatory for maintaining the correct heat range, preventing pre-ignition in the high-compression cylinders.
- Electrical: The 65958-04C battery is a high-CCA (Cold Cranking Amps) unit designed to overcome the high internal resistance of the 1200cc pistons during startup.
Chassis and Handling
The XL1200CB’s handling characteristic is defined by its 16-inch wheels both front and rear. This setup provides a ‘planted’ feel. To maintain the intended geometry and safety, tire pressures must be checked weekly: 36 psi (2.48 bar) for the front 130/90B16 and 40 psi (2.76 bar) for the rear 150/80B16. Incorrect pressure on these high-profile tires can lead to ‘wallowing’ in high-speed corners.
MotoSpecsLab Verdict
The XL1200CB (Euro 4) is a robust, character-driven machine that offers a unique blend of heritage styling and modern reliability. Proper adherence to the maintenance schedule—particularly regarding the battery health and tire pressures—is essential for preserving the ride quality of this ‘Fat’ Sportster.