SUZUKI GSF600 vs TRIUMPH T120

The TRIUMPH T120 passes its MOT first time more often than the SUZUKI GSF600 — 91.1% vs 77.3%, a 13.8-point lead.

MOT reliability, side by side

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

Metric	SUZUKI GSF600	TRIUMPH T120
First-time pass rate	77.3%	91.1%
Outright fail rate	14.2%	3.3%
Median miles at test	21,080	8,155
MOT tests analysed	143,023	5,037
Most common failure	brakes	steering and suspension

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 GSF600 77.3% pass · 143k tests TRIUMPH T120 91.1% pass · 5,037 tests

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