BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025
70.0%
first-time pass rate
18.1%
failed outright
9,027
median miles at test
950
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2009–2017

The ZIP 100's first-time pass rate has fallen 5.8 points since 2009, 71.7% to 65.9%.

64%70%75%2009: 71.7% pass (60 tests)2010: 70.5% pass (122 tests)2011: 66.2% pass (151 tests)2012: 67.5% pass (126 tests)2013: 70.1% pass (97 tests)2014: 71.7% pass (99 tests)2015: 70.6% pass (85 tests)2016: 73.3% pass (60 tests)2017: 65.9% pass (41 tests)20092017

Pass rate by mileage

how the ZIP 100's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage ZIP 100 passes first time 75.5% of the time; by 20k that's 56.5%.

53%66%79%0k: 75.5% pass (523 tests)10k: 65.6% pass (305 tests)20k: 56.5% pass (85 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 ZIP 100

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
161 35.2 2.6×
steering and suspension
121 26.4 2.9×
brakes
76 16.6 1.4×
tyres and wheels
50 10.9 2.4×
lamps and reflectors
18 3.9 0.8×
fuel and exhaust
9 2 1.1×
body and structure
9 2 1.5×
driving controls
6 1.3 2.7×
suspension
5 1.1 0.7×
tyres
3 0.7 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 ZIP 100 beats 0 of its 4 closest rivals (PIAGGIO VESPA, HONDA Vision 110, PIAGGIO PX 125 (VESPA)).

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 ZIP 100.

Pass rate by registration year

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

Best year to buy used: 2008 (71.4% pass). Weakest: 2007 (69.8%).

69%71%72%2006: 70.6% pass (323 tests)2007: 69.8% pass (378 tests)2008: 71.4% pass (234 tests)200620072008

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.

PIAGGIO ZIP 100 FAQ

answers computed from the data above · terms in the glossary

Is the PIAGGIO ZIP 100 reliable?

The PIAGGIO ZIP 100 is less reliable than average for its class: 70.0% of its 950 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4733 of 5426 models.

What does a ZIP 100 fail its MOT on most?

lighting and signalling — 35% of all defects recorded against failed ZIP 100 tests.

What is the best year of ZIP 100 to buy used?

By first-time pass rate, 2008-registered examples do best (71.4%) and 2007 worst (69.8%). Condition and history still trump the year.

How many miles will a ZIP 100 last?

The median ZIP 100 shows 9,027 miles at test, and examples around 20k miles still pass 56.5% of the time — mileage alone rarely kills one.