TRIUMPH BONNEVILLE T120 BLACK

1200cc Petrol Class 2

#1075 of 5426 overall #82 of 175 TRIUMPHs #205 of 465 cruiser bikes

89.6%

first-time pass rate

3.5%

failed outright

4,320

median miles at test

317

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2024–2025

The BONNEVILLE T120 BLACK's first-time pass rate has fallen 1.1 points since 2024, 90.3% to 89.2%.

What fails on a BONNEVILLE T120 BLACK

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	8	36.4
wheels	4	18.2
structure and attachments	3	13.6
steering	2	9.1
tyres	2	9.1
brakes	1	4.5
audible warning (Horn)	1	4.5
Identification of the vehicle	1	4.5

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 BONNEVILLE T120 BLACK beats 4 of its 4 closest rivals (TRIUMPH BONNEVILLE, TRIUMPH THUNDERBIRD, HARLEY-DAVIDSON XLH 883).

TRIUMPH BONNEVILLE 89.0% pass · 195k tests TRIUMPH THUNDERBIRD 87.8% pass · 56.3k tests HARLEY-DAVIDSON XLH 883 87.4% pass · 41.2k tests HARLEY-DAVIDSON FLSTF 88.9% pass · 30.1k tests

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 T120 BLACK.

Pass rate by registration year

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

Best year to buy used: 2021 (89.7% pass). Weakest: 2022 (88.7%).

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.