TRIUMPH S vs YAMAHA FZS600

The TRIUMPH S passes its MOT first time more often than the YAMAHA FZS600 — 88.6% vs 82.6%, a 6.0-point lead.

MOT reliability, side by side

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

Metric	TRIUMPH S	YAMAHA FZS600
First-time pass rate	88.6%	82.6%
Outright fail rate	5.1%	10.6%
Median miles at test	9,159	21,612
MOT tests analysed	26,757	136,558
Most common failure	lamps and reflectors	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 S 88.6% pass · 26.8k 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.