SUZUKI AN 400 K9

400cc Petrol Class 2

#2264 of 5426 overall #278 of 680 SUZUKIs #1406 of 2787 other bikes

85.8%

first-time pass rate

10.1%

failed outright

14,848

median miles at test

1,018

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2012–2025

The AN 400 K9's first-time pass rate has fallen 2.8 points since 2012, 90.6% to 87.8%.

Pass rate by mileage

how the AN 400 K9's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage AN 400 K9 passes first time 93.3% of the time; by 40k that's 88.2%.

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 AN 400 K9

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	99	48.8	1.7×
lamps and reflectors	27	13.3	1.1×
lighting and signalling	16	7.9	0.3×
tyres and wheels	16	7.9	0.7×
suspension	12	5.9	1.5×
steering and suspension	11	5.4	0.3×
steering	9	4.4	1.7×
tyres	7	3.4	0.9×
structure and attachments	3	1.5	0.4×
fuel and exhaust	3	1.5	0.4×

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

same type, similar capacity, high test volume

On first-time pass rate the AN 400 K9 beats 3 of its 4 closest rivals (KAWASAKI ER5, SUZUKI GS500, SUZUKI AN400).

KAWASAKI ER5 77.4% pass · 53.1k tests SUZUKI GS500 76.4% pass · 44.9k tests SUZUKI AN400 86.2% pass · 27.1k tests SUZUKI DR-Z400S 80.4% pass · 26.8k 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 AN 400 K9.

Pass rate by registration year

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

Best year to buy used: 2010 (87.3% pass). Weakest: 2009 (84.4%).

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.

SUZUKI AN 400 K9 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI AN 400 K9 reliable?

The SUZUKI AN 400 K9 is about average for its class: 85.8% of its 1,018 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2264 of 5426 models.

What does a AN 400 K9 fail its MOT on most?

brakes — 49% of all defects recorded against failed AN 400 K9 tests.

How many miles will a AN 400 K9 last?

The median AN 400 K9 shows 14,848 miles at test, and examples around 40k miles still pass 88.2% of the time — mileage alone rarely kills one.