Suzuki GSF 650 K5 vs Yamaha FZS600

The Suzuki GSF 650 K5 and Yamaha FZS600 have an identical 82.6% first-time MOT pass rate.

MOT reliability, side by side

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

Metric	Suzuki GSF 650 K5	Yamaha FZS600
First-time pass rate	82.6%	82.6%
Outright fail rate	9.7%	10.6%
Median miles at test	14,565	21,612
MOT tests analysed	4,004	136,558
Most common failure	brakes	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.

SUZUKI GSF 650 K5 82.6% pass · 4,004 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.