Honda CB400F vs Honda CB400N

The Honda CB400F passes its MOT first time more often than the Honda CB400N: 83.2% vs 77.5%, a 5.7-point lead.

MOT reliability, side by side

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

Metric	Honda CB400F	Honda CB400N
First-time pass rate	83.2%	77.5%
Outright fail rate	8.8%	12.7%
Median miles at test	30,748	30,448
MOT tests analysed	4,640	5,366
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.

HONDA CB400F 83.2% pass · 4,640 tests HONDA CB400N 77.5% pass · 5,366 tests

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