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

KAWASAKI Z1100

1089cc Petrol Class 2
83.4%
first-time pass rate
8.8%
failed outright
31,798
median miles at test
1,805
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2005–2023

The Z1100's first-time pass rate has risen 7.3 points since 2005, 81.3% to 88.6%.

71%84%96%2005: 81.3% pass (32 tests)2006: 77.4% pass (146 tests)2007: 78.4% pass (148 tests)2008: 75.5% pass (143 tests)2009: 83.1% pass (130 tests)2010: 84.5% pass (116 tests)2011: 83.3% pass (114 tests)2012: 84.3% pass (108 tests)2013: 87.3% pass (102 tests)2014: 79.4% pass (97 tests)2015: 79.6% pass (93 tests)2016: 87.5% pass (96 tests)2017: 89.0% pass (91 tests)2018: 88.1% pass (59 tests)2019: 88.0% pass (75 tests)2020: 85.4% pass (41 tests)2021: 92.0% pass (75 tests)2022: 86.6% pass (67 tests)2023: 88.6% pass (35 tests)20052023

Pass rate by mileage

how the Z1100's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage Z1100 passes first time 87.0% of the time; by 50k that's 79.4%.

78%83%89%0k: 87.0% pass (253 tests)10k: 79.9% pass (229 tests)20k: 85.7% pass (314 tests)30k: 83.7% pass (416 tests)40k: 84.1% pass (252 tests)50k: 79.4% pass (136 tests)0k30k50k

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 Z1100

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
116 30.9 0.9×
brakes
110 29.3 1.0×
steering and suspension
50 13.3 0.8×
tyres and wheels
32 8.5 0.8×
lamps and reflectors
16 4.3 0.2×
body and structure
13 3.5 1.0×
fuel and exhaust
12 3.2 0.9×
structure and attachments
9 2.4 0.6×
reg plates and vin
9 2.4 0.9×
suspension
8 2.1 0.5×

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 Z1100 beats 1 of its 4 closest rivals (BMW R1200, BMW R1150, TRIUMPH SPRINT).

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 Z1100.

Pass rate by registration year

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

Best year to buy used: 1985 (85.6% pass). Weakest: 1983 (81.4%).

81%84%86%1981: 83.9% pass (330 tests)1982: 84.0% pass (488 tests)1983: 81.4% pass (414 tests)1984: 81.9% pass (254 tests)1985: 85.6% pass (118 tests)198119831985

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.

KAWASAKI Z1100 FAQ

answers computed from the data above · terms in the glossary

Is the KAWASAKI Z1100 reliable?

The KAWASAKI Z1100 is about average for its class: 83.4% of its 1,805 MOT tests (2005–2025) passed first time, against a class average of 84.9%. That ranks it #2866 of 5426 models.

What does a Z1100 fail its MOT on most?

lighting and signalling — 31% of all defects recorded against failed Z1100 tests.

What is the best year of Z1100 to buy used?

By first-time pass rate, 1985-registered examples do best (85.6%) and 1983 worst (81.4%). Condition and history still trump the year.

How many miles will a Z1100 last?

The median Z1100 shows 31,798 miles at test, and examples around 50k miles still pass 79.4% of the time — mileage alone rarely kills one.