Bsa 350 vs Kawasaki ZXR400

The Bsa 350 passes its MOT first time more often than the Kawasaki ZXR400: 95.1% vs 73.1%, a 22.0-point lead.

MOT reliability, side by side

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

Metric	Bsa 350	Kawasaki ZXR400
First-time pass rate	95.1%	73.1%
Outright fail rate	1.1%	18.9%
Engine size	350cc	398cc
Rank among all models	#67 of 5428	#4490 of 5428
Median miles at test	10,609	23,651
MOT tests analysed	266	14,200
Most common failure	steering and suspension	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.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	Bsa 350	Kawasaki ZXR400
2006	94.1%	73.0%
2008	96.7%	72.6%
2009	93.3%	70.1%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	Bsa 350	Kawasaki ZXR400
0k-10k miles	96.6%	87.1%
10k-20k miles	98.6%	77.4%

Bands with fewer than 30 tests for either bike are left out.

BSA 350 95.1% pass · 266 tests KAWASAKI ZXR400 73.1% pass · 14.2k tests

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