Bsa M20 vs Kawasaki ZX-6R

The Bsa M20 passes its MOT first time more often than the Kawasaki ZX-6R — 91.4% vs 78.1%, a 13.3-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Bsa M20	Kawasaki ZX-6R
First-time pass rate	91.4%	78.1%
Outright fail rate	2.5%	14.0%
Median miles at test	7,746	19,446
MOT tests analysed	1,295	173,956
Most common failure	lighting and signalling	lighting and signalling

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

BSA M20 91.4% pass · 1,295 tests KAWASAKI ZX-6R 78.1% pass · 174k tests

See each bike's full report — trend, mileage curve, failure breakdown and rivals — on its own page.