BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
62.2%
first-time pass rate
24.5%
failed outright
5,684
median miles at test
1,303
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2018–2025

The ZSF's first-time pass rate has risen 4.5 points since 2018, 58.4% to 62.9%.

56%62%68%2018: 58.4% pass (101 tests)2019: 60.2% pass (191 tests)2020: 66.3% pass (240 tests)2021: 60.4% pass (225 tests)2022: 61.3% pass (186 tests)2023: 65.6% pass (163 tests)2024: 58.8% pass (102 tests)2025: 62.9% pass (89 tests)20182025

Pass rate by mileage

how the ZSF's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage ZSF passes first time 64.0% of the time; by 20k that's 46.2%.

43%55%68%0k: 64.0% pass (892 tests)10k: 55.6% pass (248 tests)20k: 46.2% pass (52 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 ZSF

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lamps and reflectors
297 30.8 8.8×
structure and attachments
190 19.7 13.2×
brakes
169 17.5 2.3×
steering
104 10.8 15.5×
tyres
75 7.8 7.1×
suspension
69 7.2 5.9×
audible warning (Horn)
33 3.4 13.8×
lighting and signalling
11 1.1 0.1×
wheels
9 0.9 10.2×
steering and suspension
6 0.6 0.1×

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 ZSF beats 0 of its 4 closest rivals (PIAGGIO VESPA, HONDA PCX 125, HONDA Vision 110).

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 ZSF.

Pass rate by registration year

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

Best year to buy used: 2017 (65.6% pass). Weakest: 2015 (60.5%).

59%63%67%2015: 60.5% pass (516 tests)2016: 62.5% pass (629 tests)2017: 65.6% pass (154 tests)201520162017

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.

LEXMOTO ZSF FAQ

answers computed from the data above · terms in the glossary

Is the LEXMOTO ZSF reliable?

The LEXMOTO ZSF is less reliable than average for its class: 62.2% of its 1,303 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5136 of 5426 models.

What does a ZSF fail its MOT on most?

lamps and reflectors — 31% of all defects recorded against failed ZSF tests.

What is the best year of ZSF to buy used?

By first-time pass rate, 2017-registered examples do best (65.6%) and 2015 worst (60.5%). Condition and history still trump the year.

How many miles will a ZSF last?

The median ZSF shows 5,684 miles at test, and examples around 20k miles still pass 46.2% of the time — mileage alone rarely kills one.