Enfield 350 vs Suzuki DR-Z400S

The Enfield 350 passes its MOT first time more often than the Suzuki DR-Z400S: 87.5% vs 80.4%, a 7.1-point lead.

MOT reliability, side by side

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

Metric	Enfield 350	Suzuki DR-Z400S
First-time pass rate	87.5%	80.4%
Outright fail rate	6.9%	11.1%
Vs comparable bikes (age & mileage adjusted)	+0.9 pts	-6.5 pts
Engine size	346cc	398cc
Rank among all models	#1750 of 5428	#3493 of 5428
Median miles at test	6,008	6,940
MOT tests analysed	2,363	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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better

Component	Enfield 350	Suzuki DR-Z400S
Lights & signalling	4.2%	6.1%
Steering & suspension	2.2%	3.2%
Brakes	1.6%	3.5%
Tyres & wheels	0.8%	2.6%
Structure & body	0.7%	0.7%
Drive system	0.4%	0.8%
Fuel & exhaust	0.6%	0.6%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	Enfield 350	Suzuki DR-Z400S
2018	93.2%	79.5%
2019	83.3%	82.2%
2020	90.4%	80.0%
2021	89.5%	83.4%
2022	87.2%	81.8%
2023	91.0%	84.9%
2024	90.6%	84.3%
2025	86.0%	83.7%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

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

Mileage	Enfield 350	Suzuki DR-Z400S
0k-10k miles	87.8%	81.7%
10k-20k miles	87.6%	78.4%
20k-30k miles	86.0%	79.2%
30k-40k miles	84.4%	76.4%

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

Enfield 350 vs Suzuki DR-Z400S FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Enfield 350 or the Suzuki DR-Z400S?

The Enfield 350 passes its MOT first time more often than the Suzuki DR-Z400S: 87.5% vs 80.4%, a 7.1-point lead. Adjusted for age, mileage and test class, the Enfield 350 still comes out ahead: +0.9 points vs comparable bikes for the Enfield 350, -6.5 for the Suzuki DR-Z400S. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Enfield 350 fail its MOT on most?

Lights & signalling: 4.2% of Enfield 350 MOT tests failed on it, then steering & suspension (2.2%).

What does the Suzuki DR-Z400S fail its MOT on most?

Lights & signalling: 6.1% of Suzuki DR-Z400S MOT tests failed on it, then brakes (3.5%).

Which holds up better at high mileage, the Enfield 350 or the Suzuki DR-Z400S?

At 30k-40k miles the Enfield 350 passes first time more often: 84.4% for the Enfield 350 vs 76.4% for the Suzuki DR-Z400S.

ENFIELD 350 87.5% pass · 2,363 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.