BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ KAWASAKI/ER 500-A4
Model report · 2005–2025

KAWASAKI ER 500-A4

498cc Petrol Class 2
77.1%
first-time pass rate
14.2%
failed outright
22,330
median miles at test
436
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2009

The ER 500-A4's first-time pass rate has risen 2.6 points since 2006, 76.8% to 79.4%.

72%77%81%2006: 76.8% pass (69 tests)2007: 78.5% pass (65 tests)2008: 73.7% pass (57 tests)2009: 79.4% pass (34 tests)20062009

Pass rate by mileage

how the ER 500-A4's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage ER 500-A4 passes first time 83.5% of the time; by 40k that's 57.6%.

52%71%90%0k: 83.5% pass (79 tests)10k: 84.5% pass (116 tests)20k: 72.6% pass (95 tests)30k: 75.0% pass (68 tests)40k: 57.6% pass (33 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 ER 500-A4

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
steering and suspension
37 27.8
lighting and signalling
35 26.3
brakes
25 18.8
tyres and wheels
11 8.3
drive system
7 5.3
lamps and reflectors
6 4.5
fuel and exhaust
5 3.8
suspension
3 2.3
structure and attachments
2 1.5
driving controls
2 1.5

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 ER 500-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 ER 500-A4.

Pass rate by registration year

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

Best year to buy used: 2001 (87.1% pass). Weakest: 2000 (75.8%).

74%81%89%2000: 75.8% pass (327 tests)2001: 87.1% pass (62 tests)20002001

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.