SUZUKI DR-Z400S vs YAMAHA RD350

The YAMAHA RD350 passes its MOT first time more often than the SUZUKI DR-Z400S — 86.3% vs 80.4%, a 5.9-point lead.

MOT reliability, side by side

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

Metric	SUZUKI DR-Z400S	YAMAHA RD350
First-time pass rate	80.4%	86.3%
Outright fail rate	11.1%	6.6%
Median miles at test	6,940	23,256
MOT tests analysed	26,773	19,574
Most common failure	lighting and signalling	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.

SUZUKI DR-Z400S 80.4% pass · 26.8k tests YAMAHA RD350 86.3% pass · 19.6k tests

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