BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

SUZUKI DRZ400

398cc Petrol Class 2
77.3%
first-time pass rate
12.5%
failed outright
5,911
median miles at test
2,655
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2025

The DRZ400's first-time pass rate has risen 8.7 points since 2006, 77.7% to 86.4%.

65%78%91%2006: 77.7% pass (121 tests)2007: 73.0% pass (152 tests)2008: 80.2% pass (167 tests)2009: 69.0% pass (155 tests)2010: 77.1% pass (166 tests)2011: 76.2% pass (172 tests)2012: 76.0% pass (171 tests)2013: 72.7% pass (165 tests)2014: 74.1% pass (166 tests)2015: 74.1% pass (158 tests)2016: 85.5% pass (138 tests)2017: 75.8% pass (120 tests)2018: 85.5% pass (69 tests)2019: 75.9% pass (83 tests)2020: 78.0% pass (91 tests)2021: 80.6% pass (139 tests)2022: 76.6% pass (124 tests)2023: 85.0% pass (107 tests)2024: 82.5% pass (80 tests)2025: 86.4% pass (88 tests)20062025

Pass rate by mileage

how the DRZ400's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage DRZ400 passes first time 77.1% of the time; by 30k that's 74.4%.

73%77%80%0k: 77.1% pass (1,712 tests)10k: 79.4% pass (495 tests)20k: 78.1% pass (96 tests)30k: 74.4% pass (43 tests)0k20k30k

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a DRZ400

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
301 34.9 1.5×
steering and suspension
119 13.8 1.1×
brakes
112 13 0.8×
lamps and reflectors
89 10.3 1.1×
tyres and wheels
83 9.6 1.2×
reg plates and vin
78 9 3.7×
drive system
32 3.7 0.9×
structure and attachments
17 2 0.7×
suspension
16 1.9 0.7×
Identification of the vehicle
15 1.7 2.1×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the DRZ400 beats 1 of its 4 closest rivals (KAWASAKI ER5, SUZUKI GS500, SUZUKI AN400).

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the DRZ400.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2008 (85.8% pass). Weakest: 2002 (73.2%).

71%80%88%2000: 74.3% pass (409 tests)2001: 79.5% pass (463 tests)2002: 73.2% pass (355 tests)2003: 77.5% pass (285 tests)2004: 74.1% pass (259 tests)2005: 79.5% pass (195 tests)2006: 77.8% pass (198 tests)2007: 78.4% pass (171 tests)2008: 85.8% pass (183 tests)200020042008

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.

SUZUKI DRZ400 FAQ

answers computed from the data above · terms in the glossary

Is the SUZUKI DRZ400 reliable?

The SUZUKI DRZ400 is less reliable than average for its class: 77.3% of its 2,655 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #4012 of 5426 models.

What does a DRZ400 fail its MOT on most?

lighting and signalling — 35% of all defects recorded against failed DRZ400 tests.

What is the best year of DRZ400 to buy used?

By first-time pass rate, 2008-registered examples do best (85.8%) and 2002 worst (73.2%). Condition and history still trump the year.

How many miles will a DRZ400 last?

The median DRZ400 shows 5,911 miles at test, and examples around 30k miles still pass 74.4% of the time — mileage alone rarely kills one.