SUZUKI GS850 vs YAMAHA FZS600

The YAMAHA FZS600 passes its MOT first time more often than the SUZUKI GS850 — 82.6% vs 80.2%, a 2.4-point lead.

MOT reliability, side by side

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

Metric	SUZUKI GS850	YAMAHA FZS600
First-time pass rate	80.2%	82.6%
Outright fail rate	11.7%	10.6%
Median miles at test	36,650	21,612
MOT tests analysed	5,158	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.

SUZUKI GS850 80.2% pass · 5,158 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.