BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ TRIUMPH/BONNIVILLE
Model report · 2005–2025

TRIUMPH BONNIVILLE

744cc Petrol Class 2
87.8%
first-time pass rate
5.5%
failed outright
12,950
median miles at test
469
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2017

The BONNIVILLE's first-time pass rate has risen 4.5 points since 2006, 86.1% to 90.6%.

62%81%100%2006: 86.1% pass (36 tests)2012: 94.7% pass (38 tests)2013: 68.4% pass (38 tests)2014: 88.9% pass (36 tests)2015: 95.3% pass (43 tests)2016: 92.3% pass (39 tests)2017: 90.6% pass (32 tests)20062017

Pass rate by mileage

how the BONNIVILLE's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage BONNIVILLE passes first time 89.6% of the time; by 30k that's 81.7%.

80%86%91%0k: 89.6% pass (192 tests)10k: 88.0% pass (92 tests)20k: 85.9% pass (85 tests)30k: 81.7% pass (60 tests)0k20k30k

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 BONNIVILLE

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
brakes
15 25.9
steering and suspension
13 22.4
lighting and signalling
12 20.7
lamps and reflectors
5 8.6
drive system
5 8.6
tyres and wheels
3 5.2
steering
2 3.4
reg plates and vin
1 1.7
body and structure
1 1.7
structure and attachments
1 1.7

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the BONNIVILLE beats 4 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 BONNIVILLE.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 1978 (86.4% pass). Weakest: 1970 (84.0%).

83%85%87%1970: 84.0% pass (50 tests)1978: 86.4% pass (59 tests)19701978

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.