SUZUKI GSX 1400 K4

1402cc Petrol Class 2

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

86.2%

first-time pass rate

7.3%

failed outright

12,601

median miles at test

261

MOT tests, 2005–2025

Pass rate by mileage

how the GSX 1400 K4's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GSX 1400 K4 passes first time 89.8% of the time; by 20k that's 90.3%.

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 1400 K4

failure defects by component group · advisories excluded

Component group	Defects	% of defects
suspension	6	22.2
steering and suspension	5	18.5
tyres and wheels	4	14.8
brakes	3	11.1
reg plates and vin	3	11.1
tyres	2	7.4
steering	1	3.7
lighting and signalling	1	3.7
structure and attachments	1	3.7
lamps and reflectors	1	3.7

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 GSX 1400 K4 beats 1 of its 4 closest rivals (BMW R1200, BMW R1150, SUZUKI GSF1200).

BMW R1200 92.9% pass · 299k tests BMW R1150 88.5% pass · 171k tests SUZUKI GSF1200 82.4% pass · 97.6k tests YAMAHA XJR1300 87.4% pass · 95.1k 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 1400 K4.

Pass rate by registration year

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

Best year to buy used: 2004 (86.4% pass). Weakest: 2004 (86.4%).

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.