BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ AJS/DD250
Model report · 2005–2025

AJS DD250

249cc Petrol Class 2
77.0%
first-time pass rate
14.8%
failed outright
5,595
median miles at test
61
MOT tests, 2005–2025

What fails on a DD250

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
9 42.9
lamps and reflectors
3 14.3
tyres and wheels
2 9.5
steering and suspension
2 9.5
drive system
1 4.8
brakes
1 4.8
steering
1 4.8
audible warning (Horn)
1 4.8
driving controls
1 4.8

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 DD250 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 DD250.