BMW F850 vs Yamaha FZS600

The BMW F850 passes its MOT first time more often than the Yamaha FZS600 — 94.6% vs 82.6%, a 12.0-point lead.

MOT reliability, side by side

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

Metric	BMW F850	Yamaha FZS600
First-time pass rate	94.6%	82.6%
Outright fail rate	2.6%	10.6%
Median miles at test	8,486	21,612
MOT tests analysed	2,828	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.

BMW F850 94.6% pass · 2,828 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.