Triumph Bonneville 750 Reliability, MOT Pass Rate & Common Faults
Free Triumph Bonneville 750 car check
Is the Triumph Bonneville 750 reliable? We analysed 686 real MOT tests across 104 vehicles to find out.
Got a specific Triumph Bonneville 750? Enter the reg for a free check:
The Triumph Bonneville 750 is above average for reliability based on real UK MOT data. Common problems include shock absorber seal failed and leaking oil, roller brake test the less effective brake control does not achieve an efficiency of 25%. and stop lamp does not illuminate immediately a brake applies. Here's everything you need to know before buying a used Triumph Bonneville 750.
Triumph Bonneville 750 Number Plates
Number plates registered to a Triumph Bonneville 750. Click on any registration for full vehicle details — including MOT history, mileage records, previous owners and damage history.
Triumph Bonneville 750 MOT Pass Rate by Year
How likely is a Triumph Bonneville 750 to pass its MOT? Here's the pass rate for each registration year, newest first.
Triumph Bonneville 750 Problems — What Goes Wrong?
The most common reasons a Triumph Bonneville 750 fails its MOT, ranked by how often they occur. Check for these problems before you buy.
Triumph Bonneville 750 Mileage — What's Normal?
How many miles does a typical Triumph Bonneville 750 owner drive per year? Use this to check if a car you're looking at has suspiciously low or high mileage.
Triumph Bonneville 750 MOT Data by Registration Year
Full breakdown of pass rate and mileage for each year. Use this to compare the Triumph Bonneville 750 year you're looking at.
| Year | Tests | Pass Rate | Low Mi. | Typical Mi. | High Mi. |
|---|---|---|---|---|---|
| 1981 | 50 | 90.0% | 10,158 | 36,926 | 44,786 |
| 1980 | 95 | 78.9% | 12,907 | 20,133 | 22,240 |
| 1979 | 76 | 85.5% | 9,639 | 19,040 | 26,348 |
| 1978 | 100 | 84.0% | 5,952 | 14,432 | 18,626 |
| 1977 | 101 | 84.2% | 6,577 | 10,098 | 29,407 |
| 1976 | 54 | 75.9% | 2,968 | 7,096 | 17,146 |
| 1975 | 62 | 95.2% | 11,281 | 22,230 | 48,512 |
How Long Does a Triumph Bonneville 750 Last?
Based on 104 Triumph Bonneville 750 vehicles on UK roads.
Triumph Bonneville 750 Mileage Distribution
Total mileage recorded across all Triumph Bonneville 750 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 750
Based on MOT pass rates across all registration years with sufficient test data.
95.2% MOT pass rate from 62 tests
75.9% MOT pass rate from 54 tests
The best year to buy a used Triumph Bonneville 750 is 1975, which has the highest MOT pass rate at 95.2% across 62 tests. The 1976 model year has the lowest pass rate at 75.9% — 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 750 Compare?
MOT pass rates compared to similar models. Click any model for the full breakdown.
| Model | Pass Rate | Tests | Typical Mileage | Lifespan |
|---|---|---|---|---|
| Triumph Bonneville 750 THIS CAR | 86.0% | 686 | 17,096 mi | 51 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 |
| Keeway Superlight 125 E4 | 74.6% | 331 | 8,719 mi | — yrs |
Compared to the Triumph Bonneville (90.1% pass rate) and the Triumph Tiger (90.6% pass rate), the Triumph Bonneville 750 trails behind on MOT reliability.
Found a Triumph Bonneville 750 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 750Should you buy a used Triumph Bonneville 750?
The Triumph Bonneville 750 has an overall MOT pass rate of 86.0% across 686 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 750 are shock absorber seal failed and leaking oil (7 recorded failures), roller brake test the less effective brake control does not achieve an efficiency of 25%. (4), and stop lamp does not illuminate immediately a brake applies (3). 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.
A typical Triumph Bonneville 750 owner drives around 197 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 750 models stay on UK roads for around 51 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.