BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

HONDA NX 400

398cc Petrol Class 2
83.2%
first-time pass rate
5.1%
failed outright
11,395
median miles at test
196
MOT tests, 2005–2025

Pass rate by mileage

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

A low-mileage NX 400 passes first time 84.7% of the time; by 20k that's 80.0%.

79%82%86%0k: 84.7% pass (85 tests)10k: 81.3% pass (48 tests)20k: 80.0% pass (30 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 NX 400

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
6 31.6
steering and suspension
4 21.1
lamps and reflectors
3 15.8
drive system
2 10.5
brakes
2 10.5
audible warning (Horn)
1 5.3
suspension
1 5.3

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the NX 400 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 NX 400.

Pass rate by registration year

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

Best year to buy used: 2006 (76.5% pass). Weakest: 2006 (76.5%).

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.