SUZUKI GS500 vs YAMAHA WR450F

The YAMAHA WR450F passes its MOT first time more often than the SUZUKI GS500 — 78.0% vs 76.4%, a 1.6-point lead.

MOT reliability, side by side

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

Metric	SUZUKI GS500	YAMAHA WR450F
First-time pass rate	76.4%	78.0%
Outright fail rate	15.0%	13.0%
Median miles at test	21,676	3,085
MOT tests analysed	44,924	9,518
Most common failure	brakes	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.

SUZUKI GS500 76.4% pass · 44.9k tests YAMAHA WR450F 78.0% pass · 9,518 tests

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