Data as of: DVSA MOT results to 2025
Kymco Super 9 vs Piaggio NRG
The Kymco Super 9 passes its MOT first time more often than the Piaggio NRG: 66.1% vs 65.5%, a 0.6-point lead.
MOT reliability, side by side
| Metric | Kymco Super 9 | Piaggio NRG |
|---|---|---|
| First-time pass rate | 66.1% | 65.5% |
| Outright fail rate | 24.5% | 27.4% |
| Vs comparable bikes (age & mileage adjusted) | -4.6 pts | -6.0 pts |
| Engine size | 49cc | 49cc |
| Rank among all models | #4960 of 5428 | #4992 of 5428 |
| Median miles at test | 11,419 | 9,874 |
| MOT tests analysed | 2,946 | 40,458 |
| Most common failure | steering and suspension | 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 | Kymco Super 9 | Piaggio NRG |
|---|---|---|
| Steering & suspension | 12.8% | 15.5% |
| Lights & signalling | 11.5% | 15.0% |
| Brakes | 7.9% | 10.2% |
| Tyres & wheels | 6.8% | 4.7% |
| Fuel & exhaust | 3.3% | 3.8% |
| Structure & body | 2.1% | 2.5% |
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 | Kymco Super 9 | Piaggio NRG |
|---|---|---|
| 2014 | 67.7% | 67.4% |
| 2015 | 66.5% | 68.8% |
| 2016 | 64.3% | 68.0% |
| 2017 | 69.1% | 72.0% |
| 2018 | 71.2% | 69.2% |
| 2019 | 71.1% | 68.0% |
| 2020 | 69.4% | 71.8% |
| 2021 | 68.9% | 72.9% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Kymco Super 9 | Piaggio NRG |
|---|---|---|
| 0k-10k miles | 72.6% | 71.3% |
| 10k-20k miles | 62.7% | 60.6% |
| 20k-30k miles | 56.4% | 55.7% |
| 30k-40k miles | 56.5% | 57.0% |
Bands with fewer than 30 tests for either bike are left out.
Kymco Super 9 vs Piaggio NRG FAQ
Which is more reliable, the Kymco Super 9 or the Piaggio NRG?
The Kymco Super 9 passes its MOT first time more often than the Piaggio NRG: 66.1% vs 65.5%, a 0.6-point lead. Adjusted for age, mileage and test class, the Kymco Super 9 still comes out ahead: -4.6 points vs comparable bikes for the Kymco Super 9, -6.0 for the Piaggio NRG. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Kymco Super 9 fail its MOT on most?
Steering & suspension: 12.8% of Kymco Super 9 MOT tests failed on it, then lights & signalling (11.5%).
What does the Piaggio NRG fail its MOT on most?
Steering & suspension: 15.5% of Piaggio NRG MOT tests failed on it, then lights & signalling (15.0%).
Which holds up better at high mileage, the Kymco Super 9 or the Piaggio NRG?
They are level: at 30k-40k miles the Kymco Super 9 passes 56.5% first time and the Piaggio NRG 57.0%.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.