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

KAWASAKI ER250-B3

248cc Petrol Class 2
73.2%
first-time pass rate
18.5%
failed outright
21,363
median miles at test
351
MOT tests, 2005–2025

Pass rate over time

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

The ER250-B3's first-time pass rate has held steady since 2006 (76.6% → 75.8%).

64%72%79%2006: 76.6% pass (47 tests)2007: 66.7% pass (33 tests)2008: 74.4% pass (39 tests)2009: 75.8% pass (33 tests)20062009

Pass rate by mileage

how the ER250-B3's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage ER250-B3 passes first time 79.5% of the time; by 30k that's 65.9%.

63%73%82%10k: 79.5% pass (127 tests)20k: 71.8% pass (131 tests)30k: 65.9% pass (41 tests)10k20k30k

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 ER250-B3

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
steering and suspension
47 28.1
brakes
41 24.6
lighting and signalling
41 24.6
tyres and wheels
15 9
drive system
6 3.6
driving controls
5 3
fuel and exhaust
5 3
lamps and reflectors
3 1.8
body and structure
3 1.8
suspension
1 0.6

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 ER250-B3 beats 0 of its 4 closest rivals (YAMAHA YP250, YAMAHA WR250F, HONDA XR250).

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 ER250-B3.

Pass rate by registration year

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

Best year to buy used: 1989 (75.2% pass). Weakest: 1988 (66.7%).

65%71%77%1988: 66.7% pass (69 tests)1989: 75.2% pass (105 tests)1990: 74.8% pass (139 tests)198819891990

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.