Data as of: DVSA MOT results to 2025
Piaggio GTS300 vs Honda Forza 300/350
The Honda Forza 300/350 passes its MOT first time more often than the Piaggio GTS300: 89.6% vs 88.9%, a 0.7-point lead.
MOT reliability, side by side
| Metric | Piaggio GTS300 | Honda Forza 300/350 |
|---|---|---|
| First-time pass rate | 88.9% | 89.6% |
| Outright fail rate | 6.2% | 7.3% |
| Vs comparable bikes (age & mileage adjusted) | +2.8 pts | +2.6 pts |
| Engine size | 278cc | 279cc |
| Rank among all models | #1305 of 5428 | #1077 of 5428 |
| Median miles at test | 12,382 | 9,648 |
| MOT tests analysed | 1,391 | 10,821 |
| Most common failure | tyres and wheels | 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 GTS300 | Honda Forza 300/350 |
|---|---|---|
| Tyres & wheels | 3.1% | 2.6% |
| Brakes | 1.2% | 3.4% |
| Lights & signalling | 2.0% | 1.7% |
| Steering & suspension | 0.9% | 1.8% |
| Structure & body | 0.6% | 0.4% |
| Fuel & exhaust | 0.9% | 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 GTS300 | Honda Forza 300/350 |
|---|---|---|
| 2018 | 88.2% | 87.4% |
| 2019 | 88.2% | 88.4% |
| 2020 | 89.6% | 87.6% |
| 2021 | 90.3% | 88.2% |
| 2022 | 87.0% | 90.5% |
| 2023 | 92.9% | 89.2% |
| 2024 | 85.3% | 90.2% |
| 2025 | 89.7% | 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 GTS300 | Honda Forza 300/350 |
|---|---|---|
| 0k-10k miles | 91.5% | 94.2% |
| 10k-20k miles | 89.2% | 87.6% |
| 20k-30k miles | 87.3% | 81.3% |
| 30k-40k miles | 84.7% | 82.1% |
| 40k-50k miles | 78.0% | 83.2% |
Bands with fewer than 30 tests for either bike are left out.
Piaggio GTS300 vs Honda Forza 300/350 FAQ
Which is more reliable, the Piaggio GTS300 or the Honda Forza 300/350?
The Honda Forza 300/350 passes its MOT first time more often than the Piaggio GTS300: 89.6% vs 88.9%, a 0.7-point lead. Adjusted for age, mileage and test class the two are level (+2.8 vs +2.6 points against comparable bikes), so the raw gap is mostly down to how old and how used each fleet is. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Piaggio GTS300 fail its MOT on most?
Tyres & wheels: 3.1% of Piaggio GTS300 MOT tests failed on it, then lights & signalling (2.0%).
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 GTS300 or the Honda Forza 300/350?
At 40k-50k miles the Honda Forza 300/350 passes first time more often: 78.0% for the Piaggio GTS300 vs 83.2% for the Honda Forza 300/350.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.