
Photo: Seán Pòl Ó Creachmhaoil · CC BY-SA 4.0
Classic motorcycle head-to-head
Yamaha RS100 scores 68/100 overall against Yamaha YB100 on 66/100. On the road: 62–63. As classics: 73–68. Overall result: Yamaha RS100.

Photo: Seán Pòl Ó Creachmhaoil · CC BY-SA 4.0

Photo: Classic & Classy Motorcycles Ltd · Owned by Classic & Classy Motorcycles Ltd
The numbers
| Category | Yamaha RS100 | Yamaha YB100 | Advantage |
|---|---|---|---|
| road | |||
| PerformanceDirect comparison of power, acceleration and usable performance across the pre-1990 classic field. | 4 | 3 | Yamaha RS100 |
| HandlingSteering, stability, weight and real-road manners. | 7 | 7 | Level |
| BrakingDirect comparison of real stopping ability without an age allowance. | 5 | 5 | Level |
| ReliabilityEngine, electrics and general dependability when properly maintained. | 8 | 8 | Level |
| Ease of ownershipMaintenance, parts supply and access to specialist knowledge. | 8 | 9 | Yamaha YB100 |
| ComfortRiding position, vibration and suitability for longer journeys. | 5 | 6 | Yamaha YB100 |
| classic | |||
| StylingDesign quality, visual presence and period appeal. | 7 | 7 | Level |
| Historical importanceInfluence on motorcycling and importance within its era. | 7 | 7 | Level |
| Collector appealLong-term desirability among classic motorcycle enthusiasts. | 7 | 6 | Yamaha RS100 |
| CharacterSound, feel, personality and memorable riding experience. | 8 | 7 | Yamaha RS100 |
you want a simple, light and economical Yamaha that represents everyday British learner transport in the late 1970s.
you want a simple, dependable lightweight with classic commuter charm and easy ownership.
Background
The Yamaha RS100 was produced from 1975–1980 and used a 97cc air-cooled two-stroke single. Within this comparison library it stands out particularly for reliability, ownership appeal, character. It suits riders who value the qualities described in its original profile rather than choosing by specification alone.
The Yamaha YB100 was produced from 1973–1989 and used a 97cc air-cooled two-stroke single. Within this comparison library it stands out particularly for ownership appeal, reliability, styling. 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 Yamaha RS100. Its library score for reliability is 8/10. 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 Yamaha YB100. Its library score for ownership appeal 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
Yamaha YB100 wins the direct on-the-road comparison. Yamaha RS100 wins the classic-motorcycle comparison. Yamaha RS100 takes the overall result after the road and classic scores are weighted equally.