
Photo: Classic & Classy Motorcycles Ltd · Owned by Classic & Classy Motorcycles Ltd
Classic motorcycle head-to-head
Harley-Davidson FLH Shovelhead scores 74/100 overall against Suzuki GS550 on 81/100. On the road: 58–82. As classics: 90–80. Overall result: Suzuki GS550.

Photo: Classic & Classy Motorcycles Ltd · Owned by Classic & Classy Motorcycles Ltd

Photo: NESR 1978 · CC BY-SA 2.0
The numbers
| Category | Harley-Davidson FLH | Suzuki GS550 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 5 | 8 | Suzuki GS550 |
| HandlingSteering, stability, weight and real-road manners. | 4 | 8 | Suzuki GS550 |
| BrakingDirect comparison of real stopping ability without an age allowance. | 4 | 8 | Suzuki GS550 |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 5 | 9 | Suzuki GS550 |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 8 | 8 | Level |
| ComfortRiding position, vibration and suitability for longer journeys. | 9 | 8 | Harley-Davidson FLH |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 9 | 8 | Harley-Davidson FLH |
| Historical importanceInfluence on motorcycling and importance within its era. | 9 | 8 | Harley-Davidson FLH |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 8 | 8 | Level |
| CharacterSound, feel, personality and memorable riding experience. | 10 | 8 | Harley-Davidson FLH |
you want relaxed long-distance presence, unmistakable American V-twin character and traditional Harley styling.
you want smooth four-cylinder performance, good reliability and a well-balanced Japanese middleweight that is easy to enjoy.
Background
The Harley-Davidson FLH Shovelhead was produced from 1966–1984 and used a Air-cooled 45-degree Shovelhead V-twin. Within this comparison library it stands out particularly for character, styling, historic importance. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
The Suzuki GS550 was produced from 1977–1986 and used a 549cc air-cooled DOHC inline four. Within this comparison library it stands out particularly for reliability, styling, performance. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Interesting details
Present-day appeal
Collector interest is strongest where condition, originality and correct period details support the identity of the Harley-Davidson FLH Shovelhead. Its library score for character is 10/10. Values and desirability can vary substantially between years, specifications and restoration quality, so individual examples should be assessed on their own evidence.
Collector interest is strongest where condition, originality and correct period details support the identity of the Suzuki GS550. Its library score for reliability is 9/10. Values and desirability can vary substantially between years, specifications and restoration quality, so individual examples should be assessed on their own evidence.
Before you buy
Period opposition
Final result
Suzuki GS550 wins the direct on-the-road comparison. Harley-Davidson FLH Shovelhead wins the classic-motorcycle comparison. Suzuki GS550 takes the overall result after the road and classic scores are weighted equally.