Honda Cb 125 vs Honda Unknown: reliability comparison
MOT pass rates, common faults and mileage compared from real UK MOT data.
Honda Cb 125
76%
MOT pass rate · 95 vehicles
Honda Unknown
85%
MOT pass rate · 1,041,859 vehicles
More reliable
Verdict: On MOT pass rate, the Honda Unknown is the more reliable of the two — 85% pass first time versus 76%. It's one signal among several; check the full breakdown below.
Head to head
| Measure | Honda Cb 125 | Honda Unknown |
|---|---|---|
| MOT pass rate | 76% | 85% ✓ |
| MOT failure rate | 24% | 15% ✓ |
| Faults & advisories per test | 0.9 | 0.9 |
| Dangerous-fault share | 0% ✓ | 3% |
| Average mileage | 19,123 mi | 25,474 mi |
| Sample size (vehicles) | 95 | 1,041,859 |
Most common faults
Honda Cb 125
- Drive chain slightly loose (6.2.1d)
- Steering headbearing has excessive free play (2.2.2)
- Rear Tyre worn close to the legal limit (4.1.3(ii))
- Front Wheel spoke slightly corroded. (4.2.1b)
- Drive chain sprocket carrier worn but not considered excessive (6.2.1e)
- Stop lamp does not illuminate immediately a brake applies (1.3.1a)
Honda Unknown
- Exhaust noisy (8.1.1 (a))
- Rear Tyre worn close to the legal limit (5.2.3 (e))
- Chain guard missing
- Rear reflector missing (4.8.2 (a) (ii))
- Drive chain slightly loose (6.1.7 (c) (i))
- Front Brake binding but not excessively (1.2.1 (f))
Reliability FAQ
On MOT pass rate, the Honda Unknown is the more reliable of the two — 85% pass first time versus 76%. It's one signal among several; check the full breakdown below.
Full Honda Cb 125 report Full Honda Unknown report Most reliable cars
Pass rates are computed over completed (pass/fail) MOT tests. Reliability also depends on age, mileage and upkeep — see each model's page for the full picture.