Data as of: DVSA MOT results to 2025
Triumph T509 Speed Triple vs Aprilia Tuono
The Aprilia Tuono passes its MOT first time more often than the Triumph T509 Speed Triple: 88.4% vs 81.2%, a 7.2-point lead.
MOT reliability, side by side
| Metric | Triumph T509 Speed Triple | Aprilia Tuono |
|---|---|---|
| First-time pass rate | 81.2% | 88.4% |
| Outright fail rate | 11.6% | 5.5% |
| Vs comparable bikes (age & mileage adjusted) | -1.8 pts | +2.3 pts |
| Engine size | 885cc | 998cc |
| Rank among all models | #3336 of 5428 | #1478 of 5428 |
| Median miles at test | 21,923 | 11,489 |
| MOT tests analysed | 1,913 | 34,724 |
| Most common failure | lighting and signalling | 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 | Triumph T509 Speed Triple | Aprilia Tuono |
|---|---|---|
| Lights & signalling | 5.2% | 2.5% |
| Brakes | 3.7% | 1.5% |
| Steering & suspension | 3.3% | 1.2% |
| Tyres & wheels | 2.6% | 1.1% |
| Fuel & exhaust | 1.5% | 0.2% |
| Structure & body | 0.7% | 0.6% |
| Drive system | 0.8% | 0.3% |
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 | Triumph T509 Speed Triple | Aprilia Tuono |
|---|---|---|
| 2018 | 76.3% | 88.7% |
| 2019 | 84.1% | 89.4% |
| 2020 | 86.3% | 90.5% |
| 2021 | 93.3% | 90.2% |
| 2022 | 88.5% | 89.9% |
| 2023 | 87.7% | 90.4% |
| 2024 | 81.0% | 91.3% |
| 2025 | 87.0% | 90.3% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Triumph T509 Speed Triple | Aprilia Tuono |
|---|---|---|
| 0k-10k miles | 84.2% | 90.7% |
| 10k-20k miles | 83.7% | 87.2% |
| 20k-30k miles | 82.1% | 86.2% |
| 30k-40k miles | 75.8% | 84.6% |
| 40k-50k miles | 78.8% | 82.1% |
| 50k-60k miles | 72.7% | 85.7% |
Bands with fewer than 30 tests for either bike are left out.
Triumph T509 Speed Triple vs Aprilia Tuono FAQ
Which is more reliable, the Triumph T509 Speed Triple or the Aprilia Tuono?
The Aprilia Tuono passes its MOT first time more often than the Triumph T509 Speed Triple: 88.4% vs 81.2%, a 7.2-point lead. Adjusted for age, mileage and test class, the Aprilia Tuono still comes out ahead: -1.8 points vs comparable bikes for the Triumph T509 Speed Triple, +2.3 for the Aprilia Tuono. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Triumph T509 Speed Triple fail its MOT on most?
Lights & signalling: 5.2% of Triumph T509 Speed Triple MOT tests failed on it, then brakes (3.7%).
What does the Aprilia Tuono fail its MOT on most?
Lights & signalling: 2.5% of Aprilia Tuono MOT tests failed on it, then brakes (1.5%).
Which holds up better at high mileage, the Triumph T509 Speed Triple or the Aprilia Tuono?
At 50k-60k miles the Aprilia Tuono passes first time more often: 72.7% for the Triumph T509 Speed Triple vs 85.7% for the Aprilia Tuono.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.