Data as of: DVSA MOT results to 2025
Piaggio Vespa GTS 300 Super Sport vs Honda Forza 300/350
The Piaggio Vespa GTS 300 Super Sport passes its MOT first time more often than the Honda Forza 300/350: 90.0% vs 89.6%, a 0.4-point lead.
MOT reliability, side by side
| Metric | Piaggio Vespa GTS 300 Super Sport | Honda Forza 300/350 |
|---|---|---|
| First-time pass rate | 90.0% | 89.6% |
| Outright fail rate | 6.1% | 7.3% |
| Vs comparable bikes (age & mileage adjusted) | +3.9 pts | +2.6 pts |
| Engine size | 278cc | 279cc |
| Rank among all models | #960 of 5428 | #1077 of 5428 |
| Median miles at test | 11,914 | 9,648 |
| MOT tests analysed | 1,320 | 10,821 |
| Most common failure | brakes | brakes |
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 | Piaggio Vespa GTS 300 Super Sport | Honda Forza 300/350 |
|---|---|---|
| Tyres & wheels | 2.6% | 2.6% |
| Brakes | 1.3% | 3.4% |
| Lights & signalling | 1.7% | 1.7% |
| Steering & suspension | 0.7% | 1.8% |
| Structure & body | 0.7% | 0.4% |
| Fuel & exhaust | 0.5% | 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 | Piaggio Vespa GTS 300 Super Sport | Honda Forza 300/350 |
|---|---|---|
| 2018 | 87.3% | 87.4% |
| 2019 | 90.7% | 88.4% |
| 2020 | 88.6% | 87.6% |
| 2021 | 89.2% | 88.2% |
| 2022 | 91.9% | 90.5% |
| 2023 | 91.5% | 89.2% |
| 2024 | 89.6% | 90.2% |
| 2025 | 85.1% | 91.8% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Piaggio Vespa GTS 300 Super Sport | Honda Forza 300/350 |
|---|---|---|
| 0k-10k miles | 91.6% | 94.2% |
| 10k-20k miles | 91.1% | 87.6% |
| 20k-30k miles | 88.8% | 81.3% |
| 30k-40k miles | 81.7% | 82.1% |
Bands with fewer than 30 tests for either bike are left out.
Piaggio Vespa GTS 300 Super Sport vs Honda Forza 300/350 FAQ
Which is more reliable, the Piaggio Vespa GTS 300 Super Sport or the Honda Forza 300/350?
The Piaggio Vespa GTS 300 Super Sport passes its MOT first time more often than the Honda Forza 300/350: 90.0% vs 89.6%, a 0.4-point lead. Adjusted for age, mileage and test class, the Piaggio Vespa GTS 300 Super Sport still comes out ahead: +3.9 points vs comparable bikes for the Piaggio Vespa GTS 300 Super Sport, +2.6 for the Honda Forza 300/350. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Piaggio Vespa GTS 300 Super Sport fail its MOT on most?
Tyres & wheels: 2.6% of Piaggio Vespa GTS 300 Super Sport MOT tests failed on it, then lights & signalling (1.7%).
What does the Honda Forza 300/350 fail its MOT on most?
Brakes: 3.4% of Honda Forza 300/350 MOT tests failed on it, then tyres & wheels (2.6%).
Which holds up better at high mileage, the Piaggio Vespa GTS 300 Super Sport or the Honda Forza 300/350?
They are level: at 30k-40k miles the Piaggio Vespa GTS 300 Super Sport passes 81.7% first time and the Honda Forza 300/350 82.1%.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.