Yamaha XJ 900 S vs Suzuki GSF1200

The Suzuki GSF1200 passes its MOT first time more often than the Yamaha XJ 900 S: 82.4% vs 81.2%, a 1.2-point lead.

MOT reliability, side by side

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

Metric	Yamaha XJ 900 S	Suzuki GSF1200
First-time pass rate	81.2%	82.4%
Outright fail rate	12.4%	8.9%
Median miles at test	29,234	20,274
MOT tests analysed	1,303	97,637
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.

YAMAHA XJ 900 S 81.2% pass · 1,303 tests SUZUKI GSF1200 82.4% pass · 97.6k tests

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