Motorcycle fuel efficiency isn’t just about engine size; it’s a blend of aerodynamics, gearing, engine tuning, and design. Larger touring bikes can surprise with their mileage due to optimized airflow, while lighter cruisers benefit from simpler engines. Highway riding settles engines into consistent rhythms, influencing overall range. This list ranks motorcycles from tourers to adventure models that deliver impressive MPG on American roads.
The ranking proceeds from lowest to highest fuel efficiency.
Honda Gold Wing: 43 MPG
The Honda Gold Wing, with its 1,883cc flat-six engine (124.7 hp, 125.3 lb-ft), stands out for its smoothness and consistent power delivery. Its low vibration even at high speeds is a key advantage. The bike’s aerodynamic bodywork guides airflow efficiently, reducing drag. Paired with a dual-clutch transmission, the engine stays in its most efficient range, achieving 43 MPG.
Harley-Davidson Road King Special: 43 MPG
The Road King Special represents American touring with a Milwaukee-Eight 114 V-twin (95 hp, 122 lb-ft). Designed for long distances, its consistent torque delivery helps maintain efficiency. The detachable windshield offers adjustable aerodynamics. Despite its classic Harley styling, it manages 43 MPG.
Harley-Davidson Street Glide: 44 MPG
The Street Glide, powered by a Milwaukee-Eight 117 (105 hp, 130 lb-ft), prioritizes low-end torque for effortless highway cruising. Its large touring chassis and front fairing reduce drag, offsetting its heavier weight. This combination results in 44 MPG.
Harley-Davidson Low Rider ST: 47 MPG
Also using the Milwaukee-Eight 117, the Low Rider ST offers similar torque but achieves 47 MPG. Its bare-bones design lowers overall weight, while the front fairing still deflects wind effectively. The six-speed transmission and tall gearing contribute to relaxed riding and fuel efficiency.
Harley-Davidson Street Bob: 47 MPG
The Street Bob’s Milwaukee-Eight 117 Classic engine delivers 47 MPG despite its simpler design. At 646 pounds, it’s lighter than many tourers. The mini-ape hanger handlebars affect throttle feel at speed but don’t impact fuel consumption.
BMW R 1300 RT: 48 MPG
The BMW R 1300 RT surprises with 48 MPG from its 1,300cc boxer twin (145 hp, 110 lb-ft). Its bodywork directs airflow efficiently despite resembling a maxi-scooter. At 504 pounds, it’s a light motorcycle for its class.
Honda Rebel 1100T: 48 MPG
The Honda Rebel 1100T uses a parallel-twin engine (87 hp, 72 lb-ft) tuned for smooth power. Its sloping tank and custom chopper-inspired design don’t affect fuel consumption, but add to its unique look.
Yamaha Tracer 9: 48 MPG
The Yamaha Tracer 9, a sport tourer with an inline-three cylinder engine (117 hp, 68.6 lb-ft), achieves 48 MPG despite its performance focus. Its uneven firing order stabilizes torque delivery at highway speeds, enhancing efficiency.
Honda Africa Twin: 48 MPG
The Honda Africa Twin shares the Rebel 1100T’s engine (100 hp, 83 lb-ft) but with different tuning. Its upright riding position allows for longer, more comfortable rides without fatigue.
Harley-Davidson Sportster: 49 MPG
The Sportster, Harley-Davidson’s sportiest cruiser, ends the list at 49 MPG. Weighing just 502 pounds, it uses the Revolution Max 1250T engine (121 hp, 93 lb-ft). The long-stroke V-twin delivers torque at lower RPMs, reducing gear changes.
These motorcycles prove that high-mileage highway riding isn’t limited to small engines; smart design, efficient tuning, and aerodynamic considerations can maximize fuel economy across various styles. Choosing the right bike for long distances means balancing power, comfort, and the ability to travel further on a single tank.
