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

HARLEY-DAVIDSON ROTAX

349cc Petrol Class 2
77.5%
first-time pass rate
12.7%
failed outright
13,104
median miles at test
71
MOT tests, 2005–2025

What fails on a ROTAX

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
5 22.7
brakes
5 22.7
drive system
4 18.2
fuel and exhaust
3 13.6
lamps and reflectors
2 9.1
tyres and wheels
2 9.1
Items Not Tested
1 4.5

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