BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ SUZUKI/VL 800 ZK4
Model report · 2005–2025

SUZUKI VL 800 ZK4

805cc Petrol Class 2
90.9%
first-time pass rate
5.2%
failed outright
14,674
median miles at test
463
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2014

The VL 800 ZK4's first-time pass rate has held steady since 2008 (90.9% → 90.0%).

77%87%97%2008: 90.9% pass (33 tests)2009: 93.3% pass (30 tests)2010: 87.9% pass (33 tests)2011: 91.4% pass (35 tests)2012: 80.0% pass (30 tests)2014: 90.0% pass (30 tests)20082014

Pass rate by mileage

how the VL 800 ZK4's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage VL 800 ZK4 passes first time 93.5% of the time; by 20k that's 89.5%.

88%91%94%0k: 93.5% pass (154 tests)10k: 88.9% pass (162 tests)20k: 89.5% pass (124 tests)0k10k20k

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 VL 800 ZK4

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
9 23.1
tyres and wheels
8 20.5
brakes
7 17.9
lamps and reflectors
4 10.3
structure and attachments
3 7.7
tyres
3 7.7
reg plates and vin
2 5.1
fuel and exhaust
2 5.1
Identification of the vehicle
1 2.6

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the VL 800 ZK4 beats 4 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

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 VL 800 ZK4.

Pass rate by registration year

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

Best year to buy used: 2006 (93.2% pass). Weakest: 2004 (90.2%).

89%92%94%2004: 90.2% pass (317 tests)2005: 92.3% pass (52 tests)2006: 93.2% pass (74 tests)200420052006

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.