
Classic motorcycle head-to-head
BMW R90S vs Suzuki GSX1100S Katana
BMW R90S scores 88/100 overall against Suzuki GSX1100S Katana on 89/100. On the road: 83–80. As classics: 93–98. Overall result: Suzuki GSX1100S Katana.


Photo: https://commons.wikimedia.org/wiki/User:Rainmaker47 / Freisteller von Auge=mit · CC BY-SA 4.0
Suzuki GSX1100S Katana
The numbers
Category-by-category result
| Category | BMW R90S | Suzuki Katana | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 8 | 9 | Suzuki Katana |
| HandlingSteering, stability, weight and real-road manners. | 8 | 8 | Level |
| BrakingDirect comparison of real stopping ability without an age allowance. | 7 | 8 | Suzuki Katana |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 9 | 9 | Level |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 9 | 7 | BMW R90S |
| ComfortRiding position, vibration and suitability for longer journeys. | 9 | 7 | BMW R90S |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 10 | 10 | Level |
| Historical importanceInfluence on motorcycling and importance within its era. | 9 | 10 | Suzuki Katana |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 10 | 10 | Level |
| CharacterSound, feel, personality and memorable riding experience. | 8 | 9 | Suzuki Katana |
Choose the BMW R90S if…
you want high-speed touring ability, engineering quality and one of BMW's most significant sporting classics.
Choose the Suzuki Katana if…
you want radical landmark styling, strong superbike performance and unmistakable early-1980s design.
Background
History
BMW R90S
The BMW R90S was produced from 1973–1976 and used a 898cc air-cooled opposed twin. Within this comparison library it stands out particularly for styling, collector appeal, reliability. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Suzuki Katana
The Suzuki GSX1100S Katana was produced from 1981–1983 and used a 1075cc air-cooled DOHC inline four. Within this comparison library it stands out particularly for styling, historic importance, collector appeal. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
Interesting details
Did you know?
BMW R90S
- Its production span in this library runs from 1973 to 1976.
- The recorded engine description is: 898cc air-cooled opposed twin.
- Its strongest comparison scores are styling, collector appeal, reliability.
Suzuki Katana
- Its production span in this library runs from 1981 to 1983.
- The recorded engine description is: 1075cc air-cooled DOHC inline four.
- Its strongest comparison scores are styling, historic importance, collector appeal.
Present-day appeal
Collector notes
BMW R90S
Collector interest is strongest where condition, originality and correct period details support the identity of the BMW R90S. Its library score for styling 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.
Suzuki Katana
Collector interest is strongest where condition, originality and correct period details support the identity of the Suzuki GSX1100S Katana. Its library score for styling 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.
Before you buy
Buying checks
BMW R90S
- Confirm the frame and engine identity match the advertised model and year.
- Check cold starting, smoke, oil leaks and unusual mechanical noise.
- Inspect the frame, wheels, brakes and suspension for wear, damage or poor repairs.
- Verify that important model-specific parts have not been replaced with incorrect later components.
- Review the paperwork, ownership history and any restoration invoices before purchase.
Suzuki Katana
- Confirm the frame and engine identity match the advertised model and year.
- Check cold starting, smoke, oil leaks and unusual mechanical noise.
- Check carburettor balance, charging output and exhaust condition across all cylinders.
- Inspect the frame, wheels, brakes and suspension for wear, damage or poor repairs.
- Verify that important model-specific parts have not been replaced with incorrect later components.
- Review the paperwork, ownership history and any restoration invoices before purchase.
Period opposition
Historic rivals
Rivals to the BMW R90S
Rivals to the Suzuki Katana
Final result
The verdict
BMW R90S wins the direct on-the-road comparison. Suzuki GSX1100S Katana wins the classic-motorcycle comparison. Suzuki GSX1100S Katana takes the overall result after the road and classic scores are weighted equally.