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

MASH TT 40

397cc Petrol Class 2
96.9%
first-time pass rate
3.1%
failed outright
1,361
median miles at test
64
MOT tests, 2005–2025

What fails on a TT 40

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
suspension
2 100

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 TT 40 beats 4 of its 4 closest rivals (KAWASAKI ER5, SUZUKI GS500, SUZUKI AN400).

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 TT 40.