SUZUKI AN 400 K8

400cc Petrol Class 2

#2866 of 5426 overall #360 of 680 SUZUKIs #1809 of 2787 other bikes

83.4%

first-time pass rate

11.9%

failed outright

15,465

median miles at test

2,174

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2011–2025

The AN 400 K8's first-time pass rate has fallen 4.5 points since 2011, 85.0% to 80.5%.

Pass rate by mileage

how the AN 400 K8's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage AN 400 K8 passes first time 91.1% of the time; by 40k that's 68.9%.

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 K8

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	231	48.1	1.7×
tyres and wheels	46	9.6	1.0×
lamps and reflectors	42	8.8	1.0×
tyres	37	7.7	2.1×
steering and suspension	34	7.1	0.4×
lighting and signalling	31	6.5	0.3×
suspension	26	5.4	1.3×
steering	21	4.4	2.3×
structure and attachments	7	1.5	0.4×
fuel and exhaust	5	1	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

same type, similar capacity, high test volume

On first-time pass rate the AN 400 K8 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 K8.

Pass rate by registration year

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

Best year to buy used: 2007 (88.5% pass). Weakest: 2008 (81.6%).

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 K8 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI AN 400 K8 reliable?

The SUZUKI AN 400 K8 is about average for its class: 83.4% of its 2,174 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2866 of 5426 models.

What does a AN 400 K8 fail its MOT on most?

brakes — 48% of all defects recorded against failed AN 400 K8 tests.

What is the best year of AN 400 K8 to buy used?

By first-time pass rate, 2007-registered examples do best (88.5%) and 2008 worst (81.6%). Condition and history still trump the year.

How many miles will a AN 400 K8 last?

The median AN 400 K8 shows 15,465 miles at test, and examples around 40k miles still pass 68.9% of the time — mileage alone rarely kills one.