SUZUKI GSX-R400H

398cc Petrol Class 2

#4893 of 5426 overall #662 of 680 SUZUKIs #217 of 226 sport bikes

67.3%

first-time pass rate

23.3%

failed outright

31,410

median miles at test

859

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2017

The GSX-R400H's first-time pass rate has risen 11.1 points since 2005, 66.7% to 77.8%.

Pass rate by mileage

how the GSX-R400H's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSX-R400H passes first time 67.2% of the time; by 50k that's 70.6%.

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 GSX-R400H

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	173	27.5	3.2×
brakes	130	20.6	2.4×
steering and suspension	121	19.2	3.3×
tyres and wheels	61	9.7	3.1×
fuel and exhaust	38	6	4.9×
body and structure	31	4.9	5.3×
drive system	30	4.8	4.0×
reg plates and vin	28	4.4	5.3×
driving controls	11	1.7	5.4×
Items Not Tested	7	1.1	8.9×

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 GSX-R400H beats 0 of its 1 closest rivals (HONDA CBR400).

HONDA CBR400 74.0% pass · 7,949 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 GSX-R400H.

Pass rate by registration year

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

Best year to buy used: 1992 (75.3% pass). Weakest: 1988 (63.4%).

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 GSX-R400H FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI GSX-R400H reliable?

The SUZUKI GSX-R400H is less reliable than average for its class: 67.3% of its 859 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #4893 of 5426 models.

What does a GSX-R400H fail its MOT on most?

lighting and signalling — 27% of all defects recorded against failed GSX-R400H tests.

What is the best year of GSX-R400H to buy used?

By first-time pass rate, 1992-registered examples do best (75.3%) and 1988 worst (63.4%). Condition and history still trump the year.

How many miles will a GSX-R400H last?

The median GSX-R400H shows 31,410 miles at test, and examples around 50k miles still pass 70.6% of the time — mileage alone rarely kills one.