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

KAWASAKI KH250

249cc Petrol Class 2
87.3%
first-time pass rate
5.0%
failed outright
17,710
median miles at test
1,925
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2020

The KH250's first-time pass rate has risen 1.1 points since 2006, 86.0% to 87.1%.

77%85%93%2006: 86.0% pass (107 tests)2007: 79.6% pass (98 tests)2008: 86.0% pass (100 tests)2009: 85.2% pass (128 tests)2010: 88.7% pass (115 tests)2011: 88.1% pass (151 tests)2012: 85.4% pass (144 tests)2013: 86.0% pass (171 tests)2014: 87.6% pass (170 tests)2015: 90.2% pass (174 tests)2016: 90.2% pass (163 tests)2017: 88.7% pass (168 tests)2018: 87.5% pass (80 tests)2019: 87.2% pass (39 tests)2020: 87.1% pass (31 tests)20062020

Pass rate by mileage

how the KH250's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage KH250 passes first time 91.6% of the time; by 30k that's 86.4%.

84%89%93%0k: 91.6% pass (403 tests)10k: 86.6% pass (754 tests)20k: 85.4% pass (549 tests)30k: 86.4% pass (191 tests)0k20k30k

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 KH250

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
60 25.3 0.5×
steering and suspension
58 24.5 0.7×
brakes
44 18.6 0.4×
tyres and wheels
29 12.2 0.5×
body and structure
16 6.8 1.2×
drive system
12 5.1 0.7×
fuel and exhaust
6 2.5 0.4×
reg plates and vin
4 1.7 0.4×
driving controls
4 1.7 0.9×
Items Not Tested
4 1.7 1.7×

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 KH250 beats 4 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 KH250.

Pass rate by registration year

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

Best year to buy used: 1975 (89.2% pass). Weakest: 1979 (83.7%).

83%86%90%1975: 89.2% pass (83 tests)1976: 88.1% pass (319 tests)1977: 89.1% pass (404 tests)1978: 85.3% pass (327 tests)1979: 83.7% pass (245 tests)1980: 88.3% pass (265 tests)1981: 86.0% pass (57 tests)1982: 88.7% pass (106 tests)197519791982

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 KH250 FAQ

answers computed from the data above · terms in the glossary

Is the KAWASAKI KH250 reliable?

The KAWASAKI KH250 is more reliable than average for its class: 87.3% of its 1,925 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #1818 of 5426 models.

What does a KH250 fail its MOT on most?

lighting and signalling — 25% of all defects recorded against failed KH250 tests.

What is the best year of KH250 to buy used?

By first-time pass rate, 1975-registered examples do best (89.2%) and 1979 worst (83.7%). Condition and history still trump the year.

How many miles will a KH250 last?

The median KH250 shows 17,710 miles at test, and examples around 30k miles still pass 86.4% of the time — mileage alone rarely kills one.