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

BSA M33

500cc Petrol Class 2
#297 of 5426 overall #13 of 62 BSAs #184 of 2787 other bikes
93.0%
first-time pass rate
2.5%
failed outright
8,784
median miles at test
244
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2011

The M33's first-time pass rate has held steady since 2006 (90.9% → 91.4%).

87%89%92%2006: 90.9% pass (33 tests)2009: 87.5% pass (32 tests)2010: 90.6% pass (32 tests)2011: 91.4% pass (35 tests)20062011

What fails on a M33

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
5 35.7
steering and suspension
5 35.7
drive system
2 14.3
brakes
1 7.1
sidecar
1 7.1

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 M33 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 M33.