Triumph Bonneville Street Twin Reliability, MOT Pass Rate & Common Faults
Free Triumph Bonneville Street Twin car check
Is the Triumph Bonneville Street Twin reliable? We analysed 1,058 real MOT tests across 568 vehicles to find out.
Got a specific Triumph Bonneville Street Twin? Enter the reg for a free check:
The Triumph Bonneville Street Twin is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Triumph Bonneville Street Twin.
Triumph Bonneville Street Twin Number Plates
Number plates registered to a Triumph Bonneville Street Twin. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Triumph Bonneville Street Twin MOT Pass Rate by Year
How likely is a Triumph Bonneville Street Twin to pass its MOT? Here's the pass rate for each registration year, newest first.
Triumph Bonneville Street Twin Common Faults & Problems
These are the most common serious faults found on Triumph Bonneville Street Twin models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Triumph Bonneville Street Twin Mileage — What's Normal?
How many miles does a typical Triumph Bonneville Street Twin owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Triumph Bonneville Street Twin MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Triumph Bonneville Street Twin year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2022 | 438 | 92.2% | 2,491 | 4,276 | 7,246 |
| 2021 | 423 | 94.3% | 2,824 | 4,848 | 7,786 |
How Long Does a Triumph Bonneville Street Twin Last?
Based on 568 Triumph Bonneville Street Twin vehicles on UK roads.
Triumph Bonneville Street Twin Mileage Distribution
Total mileage recorded across all Triumph Bonneville Street Twin MOT tests. If the car you're looking at is above the 75th percentile, it's done more miles than most.
Best Year to Buy a Used Triumph Bonneville Street Twin
Based on MOT pass rates across all registration years with sufficient test data.
94.3% MOT pass rate from 423 tests
92.2% MOT pass rate from 438 tests
The best year to buy a used Triumph Bonneville Street Twin is 2021, which has the highest MOT pass rate at 94.3% across 423 tests. The 2022 model year has the lowest pass rate at 92.2% — if you're looking at one from that year, budget for potential repairs and get a thorough pre-purchase inspection.
How Does the Triumph Bonneville Street Twin Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Triumph Bonneville Street Twin THIS CAR | 93.2% | 1,058 | 4,823 mi | — yrs |
| Triumph Bonneville | 90.1% | 235,206 | 7,823 mi | 53 yrs |
| Triumph Tiger | 90.6% | 196,853 | 17,026 mi | 32 yrs |
| Triumph Sprint | 87.3% | 158,613 | 21,242 mi | 33 yrs |
| Audi A3 Sport 138 TDI | 85.8% | 1,465 | 122,770 mi | — yrs |
Compared to the Triumph Bonneville (90.1% pass rate) and the Triumph Tiger (90.6% pass rate), the Triumph Bonneville Street Twin outperforms both on MOT reliability.
Found a Triumph Bonneville Street Twin you like?
Run a full vehicle history check on the specific car. See finance, stolen, write-off, mileage and MOT data for that exact vehicle.
Check a specific Triumph Bonneville Street TwinShould you buy a used Triumph Bonneville Street Twin?
The Triumph Bonneville Street Twin has an overall MOT pass rate of 93.2% across 1,058 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
On the safety side, the most frequently flagged dangerous fault is tyre tread depth is below minimum requirements of 1.0mm. Dangerous faults cause an immediate MOT failure and mean the vehicle is not roadworthy until repaired. If you're viewing a Triumph Bonneville Street Twin with an expired or recently passed MOT, ask the seller whether any dangerous faults were found and fixed during the last test.
A typical Triumph Bonneville Street Twin owner drives around 801 miles per year. If the car you're looking at is significantly above this, expect more wear on suspension, brakes and tyres. If it's well below, the vehicle may have been sitting unused — check for perished rubber, corroded discs and stale fluids.
Before committing to a purchase, we recommend running a full vehicle history check on the specific car. This will reveal any outstanding finance, stolen markers, write-off history and mileage discrepancies that the seller may not disclose — and that the MOT data alone can't tell you.