BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ NORTON/MODEL 99
Model report · 2005–2025

NORTON MODEL 99

600cc Petrol Class 2
94.1%
first-time pass rate
2.0%
failed outright
4,991
median miles at test
51
MOT tests, 2005–2025

What fails on a MODEL 99

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
1 100

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 MODEL 99 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 MODEL 99.