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

KAWASAKI ZX550-A4

553cc Petrol Class 2
68.4%
first-time pass rate
23.5%
failed outright
35,839
median miles at test
98
MOT tests, 2005–2025

What fails on a ZX550-A4

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
steering and suspension
21 35.6
lighting and signalling
18 30.5
brakes
10 16.9
body and structure
3 5.1
tyres and wheels
2 3.4
lamps and reflectors
1 1.7
driving controls
1 1.7
reg plates and vin
1 1.7
fuel and exhaust
1 1.7
structure and attachments
1 1.7

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 ZX550-A4 beats 0 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 ZX550-A4.