Gas Gas CC 300 vs Yamaha RD350

The Yamaha RD350 passes its MOT first time more often than the Gas Gas CC 300: 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	Gas Gas CC 300	Yamaha RD350
First-time pass rate	80.4%	86.3%
Outright fail rate	10.0%	6.6%
Engine size	294cc	347cc
Rank among all models	#3493 of 5428	#2120 of 5428
Median miles at test	2,436	23,256
MOT tests analysed	209	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.

GAS GAS CC 300 80.4% pass · 209 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.