SUZUKI AN400

385cc Petrol Class 2

#2146 of 5426 overall #256 of 680 SUZUKIs #1324 of 2787 other bikes

86.2%

first-time pass rate

9.8%

failed outright

15,861

median miles at test

27.1k

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2025

The AN400's first-time pass rate has fallen 4.6 points since 2005, 91.5% to 86.9%.

Pass rate by mileage

how the AN400's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage AN400 passes first time 91.7% of the time; by 50k that's 75.7%.

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 AN400

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	1,593	36.3	1.1×
tyres and wheels	728	16.6	1.2×
lighting and signalling	588	13.4	0.4×
steering and suspension	513	11.7	0.5×
lamps and reflectors	305	6.9	0.5×
tyres	224	5.1	1.1×
suspension	189	4.3	0.8×
fuel and exhaust	122	2.8	0.5×
structure and attachments	88	2	0.4×
steering	42	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 AN400 beats 3 of its 4 closest rivals (KAWASAKI ER5, SUZUKI GS500, SUZUKI DR-Z400S).

KAWASAKI ER5 77.4% pass · 53.1k tests SUZUKI GS500 76.4% pass · 44.9k tests SUZUKI DR-Z400S 80.4% pass · 26.8k tests ROYAL ENFIELD BULLET 500 88.2% pass · 25.7k 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 AN400.

Pass rate by registration year

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

Best year to buy used: 2011 (89.4% pass). Weakest: 2008 (82.5%).

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 AN400 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI AN400 reliable?

The SUZUKI AN400 is about average for its class: 86.2% of its 27,056 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2146 of 5426 models.

What does a AN400 fail its MOT on most?

brakes — 36% of all defects recorded against failed AN400 tests.

What is the best year of AN400 to buy used?

By first-time pass rate, 2011-registered examples do best (89.4%) and 2008 worst (82.5%). Condition and history still trump the year.

How many miles will a AN400 last?

The median AN400 shows 15,861 miles at test, and examples around 50k miles still pass 75.7% of the time — mileage alone rarely kills one.