Data as of: DVSA MOT results to 2025
Longjia LJ 125 T-A vs Gilera Runner
The Gilera Runner passes its MOT first time more often than the Longjia LJ 125 T-A: 70.8% vs 62.0%, a 8.8-point lead.
MOT reliability, side by side
| Metric | Longjia LJ 125 T-A | Gilera Runner |
|---|---|---|
| First-time pass rate | 62.0% | 70.8% |
| Outright fail rate | 28.5% | 21.5% |
| Vs comparable bikes (age & mileage adjusted) | -11.0 pts | -0.7 pts |
| Engine size | 125cc | 124cc |
| Rank among all models | #5145 of 5428 | #4675 of 5428 |
| Median miles at test | 7,862 | 11,381 |
| MOT tests analysed | 1,258 | 69,850 |
| Most common failure | lighting and signalling | 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 | Longjia LJ 125 T-A | Gilera Runner |
|---|---|---|
| Lights & signalling | 16.7% | 12.3% |
| Steering & suspension | 12.9% | 10.6% |
| Brakes | 11.5% | 7.2% |
| Tyres & wheels | 9.9% | 5.1% |
| Fuel & exhaust | 2.5% | 2.6% |
| Structure & body | 3.1% | 2.0% |
| Drive system | 0.2% | 0.0% |
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 | Longjia LJ 125 T-A | Gilera Runner |
|---|---|---|
| 2012 | 55.7% | 69.5% |
| 2013 | 60.2% | 69.5% |
| 2014 | 62.8% | 70.6% |
| 2015 | 62.6% | 72.1% |
| 2016 | 67.9% | 73.3% |
| 2017 | 63.5% | 76.1% |
| 2018 | 61.2% | 77.2% |
| 2019 | 69.4% | 77.0% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Longjia LJ 125 T-A | Gilera Runner |
|---|---|---|
| 0k-10k miles | 64.2% | 76.2% |
| 10k-20k miles | 58.4% | 67.5% |
| 20k-30k miles | 58.8% | 65.4% |
Bands with fewer than 30 tests for either bike are left out.
Longjia LJ 125 T-A vs Gilera Runner FAQ
Which is more reliable, the Longjia LJ 125 T-A or the Gilera Runner?
The Gilera Runner passes its MOT first time more often than the Longjia LJ 125 T-A: 70.8% vs 62.0%, a 8.8-point lead. Adjusted for age, mileage and test class, the Gilera Runner still comes out ahead: -11.0 points vs comparable bikes for the Longjia LJ 125 T-A, -0.7 for the Gilera Runner. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Longjia LJ 125 T-A fail its MOT on most?
Lights & signalling: 16.7% of Longjia LJ 125 T-A MOT tests failed on it, then steering & suspension (12.9%).
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 Longjia LJ 125 T-A or the Gilera Runner?
At 20k-30k miles the Gilera Runner passes first time more often: 58.8% for the Longjia LJ 125 T-A vs 65.4% for the Gilera Runner.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.