BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ KAWASAKI/ER 500-A1
Model report · 2005–2025

KAWASAKI ER 500-A1

498cc Petrol Class 2
73.1%
first-time pass rate
15.6%
failed outright
24,653
median miles at test
527
MOT tests, 2005–2025

Pass rate over time

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

The ER 500-A1's first-time pass rate has risen 6.4 points since 2006, 72.0% to 78.4%.

63%72%82%2006: 72.0% pass (93 tests)2007: 68.7% pass (83 tests)2008: 65.8% pass (73 tests)2009: 78.4% pass (37 tests)20062009

Pass rate by mileage

how the ER 500-A1's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage ER 500-A1 passes first time 88.6% of the time; by 50k that's 56.7%.

50%73%95%0k: 88.6% pass (79 tests)10k: 75.0% pass (116 tests)20k: 70.8% pass (137 tests)30k: 66.3% pass (101 tests)40k: 75.5% pass (49 tests)50k: 56.7% pass (30 tests)0k30k50k

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-A1

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
brakes
61 25.5 1.9×
steering and suspension
60 25.1 2.5×
lighting and signalling
46 19.2 1.5×
tyres and wheels
23 9.6 1.8×
drive system
17 7.1 3.2×
lamps and reflectors
12 5 0.5×
body and structure
8 3.3 2.8×
fuel and exhaust
6 2.5 1.3×
structure and attachments
4 1.7 0.8×
driving controls
2 0.8 1.6×

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 ER 500-A1 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-A1.

Pass rate by registration year

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

Best year to buy used: 1997 (74.8% pass). Weakest: 1998 (63.6%).

61%69%77%1997: 74.8% pass (409 tests)1998: 63.6% pass (55 tests)19971998

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.

KAWASAKI ER 500-A1 FAQ

answers computed from the data above · terms in the glossary

Is the KAWASAKI ER 500-A1 reliable?

The KAWASAKI ER 500-A1 is less reliable than average for its class: 73.1% of its 527 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #4488 of 5426 models.

What does a ER 500-A1 fail its MOT on most?

brakes — 26% of all defects recorded against failed ER 500-A1 tests.

How many miles will a ER 500-A1 last?

The median ER 500-A1 shows 24,653 miles at test, and examples around 50k miles still pass 56.7% of the time — mileage alone rarely kills one.