BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/AN 400 AL8
Model report · 2005–2025

SUZUKI AN 400 AL8

400cc Petrol Class 2
94.3%
first-time pass rate
3.6%
failed outright
6,993
median miles at test
1,002
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2020–2025

The AN 400 AL8's first-time pass rate has risen 2.5 points since 2020, 88.1% to 90.6%.

86%93%100%2020: 88.1% pass (42 tests)2021: 92.6% pass (176 tests)2022: 97.3% pass (220 tests)2023: 96.8% pass (220 tests)2024: 94.5% pass (163 tests)2025: 90.6% pass (181 tests)20202025

Pass rate by mileage

how the AN 400 AL8's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage AN 400 AL8 passes first time 94.8% of the time; by 20k that's 88.9%.

88%92%96%0k: 94.8% pass (656 tests)10k: 94.4% pass (248 tests)20k: 88.9% pass (54 tests)0k10k20k

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 AL8

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
32 69.6 0.6×
tyres
7 15.2 0.9×
steering
2 4.3 0.5×
lamps and reflectors
2 4.3 0.1×
structure and attachments
1 2.2 0.1×
suspension
1 2.2 0.1×
audible warning (Horn)
1 2.2 0.5×

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 AL8 beats 4 of its 4 closest rivals (KAWASAKI ER5, SUZUKI GS500, SUZUKI AN400).

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 AL8.

Pass rate by registration year

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

Best year to buy used: 2019 (97.0% pass). Weakest: 2017 (93.2%).

92%95%98%2017: 93.2% pass (278 tests)2018: 94.4% pass (570 tests)2019: 97.0% pass (134 tests)201720182019

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 AL8 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI AN 400 AL8 reliable?

The SUZUKI AN 400 AL8 is more reliable than average for its class: 94.3% of its 1,002 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #138 of 5426 models.

What does a AN 400 AL8 fail its MOT on most?

brakes — 70% of all defects recorded against failed AN 400 AL8 tests.

What is the best year of AN 400 AL8 to buy used?

By first-time pass rate, 2019-registered examples do best (97.0%) and 2017 worst (93.2%). Condition and history still trump the year.

How many miles will a AN 400 AL8 last?

The median AN 400 AL8 shows 6,993 miles at test, and examples around 20k miles still pass 88.9% of the time — mileage alone rarely kills one.