Kawasaki BN125A8 vs Yamaha YBR 125

The Kawasaki BN125A8 passes its MOT first time more often than the Yamaha YBR 125: 72.3% vs 71.0%, a 1.3-point lead.

MOT reliability, side by side

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

Metric	Kawasaki BN125A8	Yamaha YBR 125
First-time pass rate	72.3%	71.0%
Outright fail rate	15.8%	17.1%
Median miles at test	8,476	10,652
MOT tests analysed	564	124,897
Most common failure	brakes	brakes

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.

KAWASAKI BN125A8 72.3% pass · 564 tests YAMAHA YBR 125 71.0% pass · 125k tests

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