Triumph T120 Bonneville vs Honda Shadow

The Triumph T120 Bonneville passes its MOT first time more often than the Honda Shadow — 94.1% vs 81.0%, a 13.1-point lead.

MOT reliability, side by side

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

Metric	Triumph T120 Bonneville	Honda Shadow
First-time pass rate	94.1%	81.0%
Outright fail rate	2.5%	11.2%
Median miles at test	10,910	18,246
MOT tests analysed	320	6,066
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.

TRIUMPH T120 BONNEVILLE 94.1% pass · 320 tests HONDA SHADOW 81.0% pass · 6,066 tests

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