BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
82.8%
first-time pass rate
7.7%
failed outright
36,411
median miles at test
366
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2009

The Z1000ST's first-time pass rate has fallen 5.3 points since 2006, 76.3% to 71.0%.

70%74%78%2006: 76.3% pass (38 tests)2009: 71.0% pass (31 tests)20062009

Pass rate by mileage

how the Z1000ST's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage Z1000ST passes first time 89.5% of the time; by 50k that's 83.3%.

76%84%92%10k: 89.5% pass (38 tests)20k: 88.2% pass (51 tests)30k: 79.2% pass (96 tests)40k: 78.4% pass (74 tests)50k: 83.3% pass (36 tests)10k30k50k

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 Z1000ST

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects
lighting and signalling
28 38.9
brakes
18 25
tyres and wheels
7 9.7
steering and suspension
7 9.7
body and structure
5 6.9
fuel and exhaust
2 2.8
reg plates and vin
2 2.8
steering
2 2.8
lamps and reflectors
1 1.4

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 Z1000ST beats 0 of its 4 closest rivals (TRIUMPH SPEED TRIPLE, APRILIA TUONO, HONDA CB1300).

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 Z1000ST.

Pass rate by registration year

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

Best year to buy used: 1981 (85.0% pass). Weakest: 1980 (80.8%).

80%83%86%1979: 82.0% pass (111 tests)1980: 80.8% pass (130 tests)1981: 85.0% pass (113 tests)197919801981

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.