Buell Xb12s vs Buell S1: MOT reliability compared
Updated 05 September 2026.
12.0%
Buell Xb12s MOT failure rate, 0.4 pts lower than Buell S1
Buell Xb12s is the more reliable MOT performer: 12.0% of Buell Xb12s MOTs fail versus 12.4% for Buell S1, a 0.4 point gap.
| Metric | Buell Xb12s | Buell S1 |
|---|---|---|
| MOT failure rate | 12.0% | 12.4% |
| Tests analysed | 6,156 | 5,115 |
| Most common failure | Lamps & electrical (22.3%) | Lamps & electrical (25.9%) |
Questions and answers
Which is more reliable, Buell Xb12s or Buell S1?
Buell Xb12s is the more reliable MOT performer: 12.0% of Buell Xb12s MOTs fail versus 12.4% for Buell S1, a 0.4 point gap.
What is the MOT failure rate of the Buell Xb12s?
12.0% of Buell Xb12s MOT tests result in a failure, from 6,156 tests.
What is the MOT failure rate of the Buell S1?
12.4% of Buell S1 MOT tests result in a failure, from 5,115 tests.