Triumph TT600 vs Suzuki GSF600

The Triumph TT600 passes its MOT first time more often than the Suzuki GSF600 — 79.9% vs 77.3%, a 2.6-point lead.

MOT reliability, side by side

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

Metric	Triumph TT600	Suzuki GSF600
First-time pass rate	79.9%	77.3%
Outright fail rate	12.5%	14.2%
Median miles at test	15,568	21,080
MOT tests analysed	15,432	143,023
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.

TRIUMPH TT600 79.9% pass · 15.4k tests SUZUKI GSF600 77.3% pass · 143k tests

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