Triumph 650 vs Yamaha FZS600

The Triumph 650 passes its MOT first time more often than the Yamaha FZS600: 91.9% vs 82.6%, a 9.3-point lead.

MOT reliability, side by side

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

Metric	Triumph 650	Yamaha FZS600
First-time pass rate	91.9%	82.6%
Outright fail rate	3.2%	10.6%
Median miles at test	8,118	21,612
MOT tests analysed	776	136,558
Most common failure	lighting and signalling	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.

TRIUMPH 650 91.9% pass · 776 tests YAMAHA FZS600 82.6% pass · 137k tests

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