BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ MZ/TROPHY
Model report · 2005–2025

MZ TROPHY

250cc Petrol Class 2
88.8%
first-time pass rate
3.5%
failed outright
14,405
median miles at test
143
MOT tests, 2005–2025

What fails on a TROPHY

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
8 57.1
brakes
2 14.3
body and structure
1 7.1
reg plates and vin
1 7.1
sidecar
1 7.1
tyres and wheels
1 7.1

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

Pass rate by registration year

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

Best year to buy used: 1971 (84.8% pass). Weakest: 1971 (84.8%).

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.