BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/AN 400 L0
Model report · 2005–2025

SUZUKI AN 400 L0

400cc Petrol Class 2
85.7%
first-time pass rate
10.4%
failed outright
13,546
median miles at test
900
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2013–2025

The AN 400 L0's first-time pass rate has fallen 11.4 points since 2013, 89.2% to 77.8%.

74%85%95%2013: 89.2% pass (37 tests)2014: 89.1% pass (92 tests)2015: 88.4% pass (95 tests)2016: 80.0% pass (100 tests)2017: 83.7% pass (92 tests)2018: 81.2% pass (69 tests)2019: 90.9% pass (66 tests)2020: 84.4% pass (64 tests)2021: 85.1% pass (67 tests)2022: 87.7% pass (65 tests)2023: 87.1% pass (62 tests)2024: 91.3% pass (46 tests)2025: 77.8% pass (45 tests)20132025

Pass rate by mileage

how the AN 400 L0's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage AN 400 L0 passes first time 91.2% of the time; by 30k that's 73.5%.

70%82%95%0k: 91.2% pass (328 tests)10k: 87.5% pass (328 tests)20k: 79.6% pass (147 tests)30k: 73.5% pass (68 tests)0k20k30k

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 L0

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
72 50.7 1.4×
lamps and reflectors
18 12.7 1.1×
tyres and wheels
18 12.7 0.8×
tyres
9 6.3 1.5×
lighting and signalling
8 5.6 0.2×
steering and suspension
7 4.9 0.3×
suspension
5 3.5 0.8×
steering
2 1.4 0.5×
structure and attachments
2 1.4 0.3×
audible warning (Horn)
1 0.7 0.6×

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 L0 beats 3 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 L0.

Pass rate by registration year

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

Best year to buy used: 2012 (87.3% pass). Weakest: 2011 (84.8%).

84%86%88%2010: 86.4% pass (352 tests)2011: 84.8% pass (486 tests)2012: 87.3% pass (55 tests)201020112012

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 L0 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI AN 400 L0 reliable?

The SUZUKI AN 400 L0 is about average for its class: 85.7% of its 900 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2306 of 5426 models.

What does a AN 400 L0 fail its MOT on most?

brakes — 51% of all defects recorded against failed AN 400 L0 tests.

What is the best year of AN 400 L0 to buy used?

By first-time pass rate, 2012-registered examples do best (87.3%) and 2011 worst (84.8%). Condition and history still trump the year.

How many miles will a AN 400 L0 last?

The median AN 400 L0 shows 13,546 miles at test, and examples around 30k miles still pass 73.5% of the time — mileage alone rarely kills one.