Data as of: DVSA MOT results to 2025
Honda SH 125 B vs Gilera Runner
The Honda SH 125 B passes its MOT first time more often than the Gilera Runner: 83.0% vs 70.8%, a 12.2-point lead.
MOT reliability, side by side
| Metric | Honda SH 125 B | Gilera Runner |
|---|---|---|
| First-time pass rate | 83.0% | 70.8% |
| Outright fail rate | 9.7% | 21.5% |
| Vs comparable bikes (age & mileage adjusted) | +12.7 pts | -0.7 pts |
| Engine size | 125cc | 124cc |
| Rank among all models | #2962 of 5428 | #4675 of 5428 |
| Median miles at test | 14,951 | 11,381 |
| MOT tests analysed | 1,980 | 69,850 |
| Most common failure | brakes | lighting and signalling |
First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.
"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.
What fails, side by side
| Component | Honda SH 125 B | Gilera Runner |
|---|---|---|
| Lights & signalling | 4.8% | 12.3% |
| Steering & suspension | 2.0% | 10.6% |
| Brakes | 4.5% | 7.2% |
| Tyres & wheels | 3.0% | 5.1% |
| Fuel & exhaust | 0.1% | 2.6% |
| Structure & body | 0.3% | 2.0% |
A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.
Pass rate by test year
| Test year | Honda SH 125 B | Gilera Runner |
|---|---|---|
| 2018 | 82.7% | 77.2% |
| 2019 | 82.4% | 77.0% |
| 2020 | 86.6% | 75.8% |
| 2021 | 74.4% | 79.1% |
| 2022 | 85.3% | 80.5% |
| 2023 | 79.7% | 81.3% |
| 2024 | 74.4% | 84.0% |
| 2025 | 87.9% | 85.5% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Honda SH 125 B | Gilera Runner |
|---|---|---|
| 0k-10k miles | 86.3% | 76.2% |
| 10k-20k miles | 83.9% | 67.5% |
| 20k-30k miles | 79.9% | 65.4% |
| 30k-40k miles | 80.2% | 67.2% |
| 40k-50k miles | 82.8% | 68.1% |
| 50k-60k miles | 78.6% | 67.8% |
Bands with fewer than 30 tests for either bike are left out.
Honda SH 125 B vs Gilera Runner FAQ
Which is more reliable, the Honda SH 125 B or the Gilera Runner?
The Honda SH 125 B passes its MOT first time more often than the Gilera Runner: 83.0% vs 70.8%, a 12.2-point lead. Adjusted for age, mileage and test class, the Honda SH 125 B still comes out ahead: +12.7 points vs comparable bikes for the Honda SH 125 B, -0.7 for the Gilera Runner. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Honda SH 125 B fail its MOT on most?
Lights & signalling: 4.8% of Honda SH 125 B MOT tests failed on it, then brakes (4.5%).
What does the Gilera Runner fail its MOT on most?
Lights & signalling: 12.3% of Gilera Runner MOT tests failed on it, then steering & suspension (10.6%).
Which holds up better at high mileage, the Honda SH 125 B or the Gilera Runner?
At 50k-60k miles the Honda SH 125 B passes first time more often: 78.6% for the Honda SH 125 B vs 67.8% for the Gilera Runner.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.