Jawa 350 S/C vs Suzuki DR-Z400S

The Suzuki DR-Z400S passes its MOT first time more often than the Jawa 350 S/C: 80.4% vs 77.3%, a 3.1-point lead.

MOT reliability, side by side

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

Metric	Jawa 350 S/C	Suzuki DR-Z400S
First-time pass rate	77.3%	80.4%
Outright fail rate	13.2%	11.1%
Vs comparable bikes (age & mileage adjusted)	-7.1 pts	-6.5 pts
Engine size	344cc	398cc
Rank among all models	#4013 of 5428	#3493 of 5428
Median miles at test	12,825	6,940
MOT tests analysed	220	26,773
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.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	Jawa 350 S/C	Suzuki DR-Z400S
0k-10k miles	74.2%	81.7%
10k-20k miles	73.9%	78.4%
20k-30k miles	86.5%	79.2%

Bands with fewer than 30 tests for either bike are left out.

JAWA 350 S/C 77.3% pass · 220 tests SUZUKI DR-Z400S 80.4% pass · 26.8k tests

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