Triumph Bonneville T100 Reliability, MOT Pass Rate & Common Faults
Free Triumph Bonneville T100 car check
Is the Triumph Bonneville T100 reliable? We analysed 5,627 real MOT tests across 754 vehicles to find out.
Got a specific Triumph Bonneville T100? Enter the reg for a free check:
The Triumph Bonneville T100 is above average for reliability based on real UK MOT data. Common problems include tyre tread depth is below minimum requirements of 1.0mm, brake pad(s) less than 1.5 mm thick and roller brake test indicates a binding brake. Here's everything you need to know before buying a used Triumph Bonneville T100.
Triumph Bonneville T100 Number Plates
Number plates registered to a Triumph Bonneville T100. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Triumph Bonneville T100 MOT Pass Rate by Year
How likely is a Triumph Bonneville T100 to pass its MOT? Here's the pass rate for each registration year, newest first.
Triumph Bonneville T100 Problems — What Goes Wrong?
The most common reasons a Triumph Bonneville T100 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Triumph Bonneville T100 Common Faults & Problems
These are the most common serious faults found on Triumph Bonneville T100 models during MOT testing — flagged as dangerous or major failures that need immediate attention.
Triumph Bonneville T100 Mileage — What's Normal?
How many miles does a typical Triumph Bonneville T100 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Triumph Bonneville T100 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Triumph Bonneville T100 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 2022 | 198 | 94.9% | 1,924 | 3,480 | 6,393 |
| 2021 | 340 | 91.5% | 2,363 | 3,949 | 7,818 |
| 2016 | 51 | 84.3% | 5,527 | 9,311 | 16,183 |
| 2012 | 53 | 88.7% | 6,260 | 9,624 | 13,828 |
| 2011 | 61 | 85.2% | 6,003 | 13,097 | 16,699 |
| 2009 | 59 | 91.5% | 5,012 | 8,746 | 13,446 |
| 2008 | 140 | 95.0% | 3,113 | 7,904 | 11,408 |
| 2007 | 75 | 92.0% | 6,798 | 11,851 | 16,975 |
| 2006 | 66 | 81.8% | 4,243 | 5,781 | 8,887 |
| 2005 | 254 | 87.4% | 5,854 | 9,776 | 16,990 |
| 2004 | 1,899 | 90.2% | 4,647 | 8,958 | 16,707 |
| 2003 | 1,754 | 88.7% | 5,500 | 10,253 | 16,680 |
| 2002 | 428 | 93.5% | 4,502 | 8,595 | 15,914 |
How Long Does a Triumph Bonneville T100 Last?
Based on 754 Triumph Bonneville T100 vehicles on UK roads.
Triumph Bonneville T100 Mileage Distribution
Total mileage recorded across all Triumph Bonneville T100 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 T100
Based on MOT pass rates across all registration years with sufficient test data.
95.0% MOT pass rate from 140 tests
81.8% MOT pass rate from 66 tests
The best year to buy a used Triumph Bonneville T100 is 2008, which has the highest MOT pass rate at 95.0% across 140 tests. The 2006 model year has the lowest pass rate at 81.8% — 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 T100 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Triumph Bonneville T100 THIS CAR | 90.2% | 5,627 | 8,633 mi | 24 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 |
| Volkswagen Tiguan Life TSI S-a | 90.8% | 10,710 | 29,357 mi | — yrs |
Compared to the Triumph Bonneville (90.1% pass rate) and the Triumph Tiger (90.6% pass rate), the Triumph Bonneville T100 sits in the middle of the pack on MOT reliability.
Found a Triumph Bonneville T100 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 T100Should you buy a used Triumph Bonneville T100?
The Triumph Bonneville T100 has an overall MOT pass rate of 90.2% across 5,627 real MOT tests — comfortably above the UK average, which puts it among the more reliable models on UK roads.
The most common problems on the Triumph Bonneville T100 are tyre tread depth is below minimum requirements of 1.0mm (40 recorded failures), brake pad(s) less than 1.5 mm thick (38), and roller brake test indicates a binding brake (23). These are the faults most likely to cause an MOT failure on this model, so check for them carefully on any test drive or pre-purchase inspection. Many are wear-and-tear items that can be budgeted for, but a car that's already failing on multiple fronts may signal neglected maintenance.
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 T100 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 T100 owner drives around 508 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.
In terms of longevity, most Triumph Bonneville T100 models stay on UK roads for around 24 years — a strong showing that suggests solid build quality and readily available parts. If you're buying one that's already approaching that window, the data suggests it has plenty of life left provided it's been maintained.
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.