BIKERELIABILITY Reg check
League table/ Honda NSC/vs Piaggio Zip
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Honda NSC vs Piaggio Zip

The Honda NSC passes its MOT first time more often than the Piaggio Zip: 84.9% vs 71.3%, a 13.6-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Honda NSC Piaggio Zip
First-time pass rate 84.9% 71.3%
Outright fail rate 9.4% 20.4%
Vs comparable bikes (age & mileage adjusted) +11.6 pts -1.0 pts
Engine size 49cc 49cc
Rank among all models #2516 of 5428 #4631 of 5428
Median miles at test 7,376 8,882
MOT tests analysed 9,547 78,993
Most common failure brakes 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 Honda NSC Piaggio Zip
Lights & signalling 3.5% 11.9%
Steering & suspension 4.8% 9.2%
Brakes 3.6% 6.5%
Tyres & wheels 2.0% 4.0%
Fuel & exhaust 0.0% 2.5%
Structure & body 0.3% 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 Honda NSC Piaggio Zip
2018 87.8% 72.9%
2019 84.8% 73.0%
2020 88.5% 73.1%
2021 85.2% 73.3%
2022 84.9% 74.5%
2023 81.4% 74.1%
2024 80.3% 73.4%
2025 82.4% 76.2%

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 Honda NSC Piaggio Zip
0k-10k miles 89.0% 75.2%
10k-20k miles 76.8% 66.7%
20k-30k miles 75.8% 64.4%
30k-40k miles 72.4% 64.5%
40k-50k miles 76.9% 65.4%

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

Honda NSC vs Piaggio Zip FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Honda NSC or the Piaggio Zip?

The Honda NSC passes its MOT first time more often than the Piaggio Zip: 84.9% vs 71.3%, a 13.6-point lead. Adjusted for age, mileage and test class, the Honda NSC still comes out ahead: +11.6 points vs comparable bikes for the Honda NSC, -1.0 for the Piaggio Zip. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Honda NSC fail its MOT on most?

Steering & suspension: 4.8% of Honda NSC MOT tests failed on it, then brakes (3.6%).

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 Honda NSC or the Piaggio Zip?

At 40k-50k miles the Honda NSC passes first time more often: 76.9% for the Honda NSC vs 65.4% for the Piaggio Zip.

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