TRIUMPH BONNEVILLE 750
Pass rate over time
The BONNEVILLE 750's first-time pass rate has risen 8.2 points since 2006, 82.7% to 90.9%.
Pass rate by mileage
A low-mileage BONNEVILLE 750 passes first time 82.9% of the time; by 40k that's 90.0%.
First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.
What fails on a BONNEVILLE 750
| Component group | Share of defects | Defects | % of defects | vs all bikes |
|---|---|---|---|---|
| lighting and signalling |
|
29 | 35.4 | 0.8× |
| steering and suspension |
|
19 | 23.2 | 0.7× |
| brakes |
|
18 | 22 | 0.6× |
| tyres and wheels |
|
4 | 4.9 | 0.3× |
| driving controls |
|
4 | 4.9 | 2.7× |
| lamps and reflectors |
|
2 | 2.4 | 0.2× |
| drive system |
|
2 | 2.4 | 0.4× |
| fuel and exhaust |
|
2 | 2.4 | 0.4× |
| suspension |
|
1 | 1.2 | 0.2× |
| body and structure |
|
1 | 1.2 | 0.3× |
Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.
How rivals compare
On first-time pass rate the BONNEVILLE 750 beats 0 of its 4 closest rivals (TRIUMPH BONNEVILLE, TRIUMPH THUNDERBIRD, HARLEY-DAVIDSON XLH 883).
Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the BONNEVILLE 750.
Pass rate by registration year
Best year to buy used: 1975 (96.4% pass). Weakest: 1976 (73.2%).
First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.
TRIUMPH BONNEVILLE 750 FAQ
Is the TRIUMPH BONNEVILLE 750 reliable?
The TRIUMPH BONNEVILLE 750 is about average for its class: 85.2% of its 630 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2443 of 5426 models.
What does a BONNEVILLE 750 fail its MOT on most?
lighting and signalling — 35% of all defects recorded against failed BONNEVILLE 750 tests.
What is the best year of BONNEVILLE 750 to buy used?
By first-time pass rate, 1975-registered examples do best (96.4%) and 1976 worst (73.2%). Condition and history still trump the year.
How many miles will a BONNEVILLE 750 last?
The median BONNEVILLE 750 shows 17,194 miles at test, and examples around 40k miles still pass 90.0% of the time — mileage alone rarely kills one.