TRIUMPH DAYTONA vs YAMAHA YZF-R1

The YAMAHA YZF-R1 passes its MOT first time more often than the TRIUMPH DAYTONA — 84.1% vs 83.6%, a 0.5-point lead.

MOT reliability, side by side

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

Metric	TRIUMPH DAYTONA	YAMAHA YZF-R1
First-time pass rate	83.6%	84.1%
Outright fail rate	9.4%	7.8%
Median miles at test	15,798	16,705
MOT tests analysed	113,145	231,508
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 DAYTONA 83.6% pass · 113k tests YAMAHA YZF-R1 84.1% pass · 232k tests

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