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

KAWASAKI ZR550

553cc Petrol Class 2
70.2%
first-time pass rate
20.3%
failed outright
21,609
median miles at test
305
MOT tests, 2005–2025

Pass rate by mileage

how the ZR550's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage ZR550 passes first time 64.7% of the time; by 40k that's 65.6%.

63%69%75%0k: 64.7% pass (34 tests)10k: 68.8% pass (96 tests)20k: 73.4% pass (79 tests)30k: 72.9% pass (59 tests)40k: 65.6% pass (32 tests)0k20k40k

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 ZR550

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
brakes
47 32.2
steering and suspension
34 23.3
lighting and signalling
27 18.5
drive system
12 8.2
fuel and exhaust
8 5.5
tyres and wheels
6 4.1
reg plates and vin
5 3.4
lamps and reflectors
3 2.1
driving controls
2 1.4
suspension
2 1.4

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 ZR550 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 ZR550.

Pass rate by registration year

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

Best year to buy used: 1992 (73.8% pass). Weakest: 1996 (63.0%).

61%68%76%1991: 69.0% pass (71 tests)1992: 73.8% pass (61 tests)1996: 63.0% pass (54 tests)199119921996

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.