Honda CB400SF vs Honda CB400N

The Honda CB400SF passes its MOT first time more often than the Honda CB400N: 81.5% vs 77.5%, a 4.0-point lead.

MOT reliability, side by side

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

Metric	Honda CB400SF	Honda CB400N
First-time pass rate	81.5%	77.5%
Outright fail rate	10.7%	12.7%
Median miles at test	28,624	30,448
MOT tests analysed	504	5,366
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.

HONDA CB400SF 81.5% pass · 504 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.