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

AJS 650

650cc Petrol Class 2
93.7%
first-time pass rate
2.5%
failed outright
19,886
median miles at test
159
MOT tests, 2005–2025

What fails on a 650

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
tyres and wheels
3 60
fuel and exhaust
1 20
steering and suspension
1 20

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 650 beats 4 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 650.