BIKERELIABILITY Reg check
League table/ Pgo Rodo Show/vs Piaggio Zip
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Pgo Rodo Show vs Piaggio Zip

The Pgo Rodo Show passes its MOT first time more often than the Piaggio Zip: 77.7% vs 71.3%, a 6.4-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Pgo Rodo Show Piaggio Zip
First-time pass rate 77.7% 71.3%
Outright fail rate 14.0% 20.4%
Vs comparable bikes (age & mileage adjusted) +5.5 pts -1.0 pts
Engine size 49cc 49cc
Rank among all models #3952 of 5428 #4631 of 5428
Median miles at test 8,982 8,882
MOT tests analysed 614 78,993
Most common failure lighting and signalling 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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component Pgo Rodo Show Piaggio Zip
Lights & signalling 6.4% 11.9%
Brakes 7.0% 6.5%
Steering & suspension 3.3% 9.2%
Tyres & wheels 3.7% 4.0%
Fuel & exhaust 2.1% 2.5%
Structure & body 0.8% 1.6%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year Pgo Rodo Show Piaggio Zip
2009 73.8% 70.0%
2010 76.3% 70.8%
2011 79.0% 69.7%
2012 79.2% 69.1%
2013 72.4% 69.7%
2014 71.4% 68.8%

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 Pgo Rodo Show Piaggio Zip
0k-10k miles 80.2% 75.2%
10k-20k miles 76.6% 66.7%
20k-30k miles 66.7% 64.4%

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

Pgo Rodo Show vs Piaggio Zip FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Pgo Rodo Show or the Piaggio Zip?

The Pgo Rodo Show passes its MOT first time more often than the Piaggio Zip: 77.7% vs 71.3%, a 6.4-point lead. Adjusted for age, mileage and test class, the Pgo Rodo Show still comes out ahead: +5.5 points vs comparable bikes for the Pgo Rodo Show, -1.0 for the Piaggio Zip. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Pgo Rodo Show fail its MOT on most?

Brakes: 7.0% of Pgo Rodo Show MOT tests failed on it, then lights & signalling (6.4%).

What does the Piaggio Zip fail its MOT on most?

Lights & signalling: 11.9% of Piaggio Zip MOT tests failed on it, then steering & suspension (9.2%).

Which holds up better at high mileage, the Pgo Rodo Show or the Piaggio Zip?

At 20k-30k miles the Pgo Rodo Show passes first time more often: 66.7% for the Pgo Rodo Show vs 64.4% for the Piaggio Zip.

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