Kymco Filly vs Piaggio Zip

The Kymco Filly passes its MOT first time more often than the Piaggio Zip: 84.7% vs 71.3%, a 13.4-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Kymco Filly	Piaggio Zip
First-time pass rate	84.7%	71.3%
Outright fail rate	11.7%	20.4%
Vs comparable bikes (age & mileage adjusted)	+11.5 pts	-1.0 pts
Engine size	50cc	49cc
Rank among all models	#2572 of 5428	#4631 of 5428
Median miles at test	6,776	8,882
MOT tests analysed	360	78,993
Most common failure	steering and suspension	lighting and signalling

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	Kymco Filly	Piaggio Zip
2006	90.4%	73.7%
2007	82.2%	71.0%
2008	83.7%	72.4%
2009	90.5%	70.0%
2010	78.1%	70.8%
2011	80.0%	69.7%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test

Mileage	Kymco Filly	Piaggio Zip
0k-10k miles	86.1%	75.2%
10k-20k miles	81.4%	66.7%

Bands with fewer than 30 tests for either bike are left out.

KYMCO FILLY 84.7% pass · 360 tests PIAGGIO ZIP 71.3% pass · 79.0k tests

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.