Data as of: DVSA MOT results to 2025
Hyosung GT 125 R vs Honda CG125
The Honda CG125 passes its MOT first time more often than the Hyosung GT 125 R: 72.2% vs 58.2%, a 14.0-point lead.
MOT reliability, side by side
| Metric | Hyosung GT 125 R | Honda CG125 |
|---|---|---|
| First-time pass rate | 58.2% | 72.2% |
| Outright fail rate | 30.5% | 16.8% |
| Vs comparable bikes (age & mileage adjusted) | -13.7 pts | +0.7 pts |
| Engine size | 124cc | 124cc |
| Rank among all models | #5270 of 5428 | #4568 of 5428 |
| Median miles at test | 9,722 | 17,460 |
| MOT tests analysed | 2,286 | 89,345 |
| 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 | Hyosung GT 125 R | Honda CG125 |
|---|---|---|
| Lights & signalling | 18.5% | 10.0% |
| Brakes | 15.4% | 5.1% |
| Steering & suspension | 13.2% | 7.2% |
| Tyres & wheels | 5.8% | 4.6% |
| Drive system | 7.0% | 2.6% |
| Structure & body | 5.6% | 1.9% |
| Fuel & exhaust | 2.0% | 0.9% |
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 | Hyosung GT 125 R | Honda CG125 |
|---|---|---|
| 2016 | 56.6% | 71.1% |
| 2017 | 56.7% | 72.7% |
| 2018 | 62.5% | 72.6% |
| 2019 | 67.1% | 71.8% |
| 2020 | 58.5% | 73.6% |
| 2021 | 50.7% | 73.9% |
| 2022 | 52.2% | 73.5% |
| 2023 | 63.3% | 74.4% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Hyosung GT 125 R | Honda CG125 |
|---|---|---|
| 0k-10k miles | 60.9% | 79.3% |
| 10k-20k miles | 56.6% | 73.0% |
| 20k-30k miles | 51.6% | 68.3% |
| 30k-40k miles | 62.7% | 66.4% |
Bands with fewer than 30 tests for either bike are left out.
Hyosung GT 125 R vs Honda CG125 FAQ
Which is more reliable, the Hyosung GT 125 R or the Honda CG125?
The Honda CG125 passes its MOT first time more often than the Hyosung GT 125 R: 72.2% vs 58.2%, a 14.0-point lead. Adjusted for age, mileage and test class, the Honda CG125 still comes out ahead: -13.7 points vs comparable bikes for the Hyosung GT 125 R, +0.7 for the Honda CG125. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Hyosung GT 125 R fail its MOT on most?
Lights & signalling: 18.5% of Hyosung GT 125 R MOT tests failed on it, then brakes (15.4%).
What does the Honda CG125 fail its MOT on most?
Lights & signalling: 10.0% of Honda CG125 MOT tests failed on it, then steering & suspension (7.2%).
Which holds up better at high mileage, the Hyosung GT 125 R or the Honda CG125?
At 30k-40k miles the Honda CG125 passes first time more often: 62.7% for the Hyosung GT 125 R vs 66.4% for the Honda CG125.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.