BIKERELIABILITY Reg check
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Kymco Cobra Cross vs Piaggio NRG

The Kymco Cobra Cross passes its MOT first time more often than the Piaggio NRG: 71.2% vs 65.5%, a 5.7-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Kymco Cobra Cross Piaggio NRG
First-time pass rate 71.2% 65.5%
Outright fail rate 22.1% 27.4%
Vs comparable bikes (age & mileage adjusted) +0.7 pts -6.0 pts
Engine size 49cc 49cc
Rank among all models #4640 of 5428 #4992 of 5428
Median miles at test 14,526 9,874
MOT tests analysed 773 40,458
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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component Kymco Cobra Cross Piaggio NRG
Steering & suspension 11.5% 15.5%
Lights & signalling 8.2% 15.0%
Brakes 7.8% 10.2%
Tyres & wheels 6.2% 4.7%
Fuel & exhaust 3.9% 3.8%
Structure & body 2.3% 2.5%

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 Kymco Cobra Cross Piaggio NRG
2008 77.8% 65.2%
2009 71.6% 62.2%
2010 76.4% 63.2%
2011 59.6% 63.9%
2012 51.9% 63.4%
2013 65.9% 64.1%
2014 71.9% 67.4%
2015 75.0% 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 Kymco Cobra Cross Piaggio NRG
0k-10k miles 78.2% 71.3%
10k-20k miles 68.3% 60.6%
20k-30k miles 67.8% 55.7%
30k-40k miles 77.8% 57.0%

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

Kymco Cobra Cross vs Piaggio NRG FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Kymco Cobra Cross or the Piaggio NRG?

The Kymco Cobra Cross passes its MOT first time more often than the Piaggio NRG: 71.2% vs 65.5%, a 5.7-point lead. Adjusted for age, mileage and test class, the Kymco Cobra Cross still comes out ahead: +0.7 points vs comparable bikes for the Kymco Cobra Cross, -6.0 for the Piaggio NRG. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Kymco Cobra Cross fail its MOT on most?

Steering & suspension: 11.5% of Kymco Cobra Cross MOT tests failed on it, then lights & signalling (8.2%).

What does the Piaggio NRG fail its MOT on most?

Steering & suspension: 15.5% of Piaggio NRG MOT tests failed on it, then lights & signalling (15.0%).

Which holds up better at high mileage, the Kymco Cobra Cross or the Piaggio NRG?

At 30k-40k miles the Kymco Cobra Cross passes first time more often: 77.8% for the Kymco Cobra Cross vs 57.0% for the Piaggio NRG.

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