Triumph Bonneville T120 Reliability, MOT Pass Rate & Common Faults
Free Triumph Bonneville T120 car check
Is the Triumph Bonneville T120 reliable? We analysed 1,049 real MOT tests across 543 vehicles to find out.
Got a specific Triumph Bonneville T120? Enter the reg for a free check:
The Triumph Bonneville T120 is above average for reliability based on real UK MOT data. Here's everything you need to know before buying a used Triumph Bonneville T120.
Triumph Bonneville T120 Number Plates
Number plates registered to a Triumph Bonneville T120. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Triumph Bonneville T120 MOT Pass Rate by Year
How likely is a Triumph Bonneville T120 to pass its MOT? Here's the pass rate for each registration year, newest first.
Triumph Bonneville T120 Problems — What Goes Wrong?
The most common reasons a Triumph Bonneville T120 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Triumph Bonneville T120 Common Faults & Problems
These are the most common serious faults found on Triumph Bonneville T120 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Triumph Bonneville T120 Mileage — What's Normal?
How many miles does a typical Triumph Bonneville T120 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Triumph Bonneville T120 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Triumph Bonneville T120 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2022 | 321 | 95.0% | 2,045 | 3,855 | 6,229 |
| 2021 | 379 | 91.3% | 2,601 | 4,228 | 6,610 |
How Long Does a Triumph Bonneville T120 Last?
Based on 543 Triumph Bonneville T120 vehicles on UK roads.
Triumph Bonneville T120 Mileage Distribution
Total mileage recorded across all Triumph Bonneville T120 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 T120
Based on MOT pass rates across all registration years with sufficient test data.
95.0% MOT pass rate from 321 tests
91.3% MOT pass rate from 379 tests
The best year to buy a used Triumph Bonneville T120 is 2022, which has the highest MOT pass rate at 95.0% across 321 tests. The 2021 model year has the lowest pass rate at 91.3% — 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 T120 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Triumph Bonneville T120 THIS CAR | 93.2% | 1,049 | 4,435 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 |
| Citroen Berlingo 850 En-prise Bluehdi | 87.4% | 1,850 | 65,623 mi | — yrs |
Compared to the Triumph Bonneville (90.1% pass rate) and the Triumph Tiger (90.6% pass rate), the Triumph Bonneville T120 outperforms both on MOT reliability.
Found a Triumph Bonneville T120 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 T120Should you buy a used Triumph Bonneville T120?
The Triumph Bonneville T120 has an overall MOT pass rate of 93.2% across 1,049 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common failure point is handlebar mounting clamp bolt loose with 2 recorded occurrences. Check for this on any test drive or pre-purchase inspection.
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 T120 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 T120 owner drives around 609 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.