Velocette KSS vs Yamaha RD350

The Velocette KSS passes its MOT first time more often than the Yamaha RD350 — 92.3% vs 86.3%, a 6.0-point lead.

MOT reliability, side by side

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

Metric	Velocette KSS	Yamaha RD350
First-time pass rate	92.3%	86.3%
Outright fail rate	2.1%	6.6%
Median miles at test	5,025	23,256
MOT tests analysed	559	19,574
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.

VELOCETTE KSS 92.3% pass · 559 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.