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

Data as of: DVSA MOT results to 2025

Easy Rider CJ50FK vs Piaggio NRG

The Easy Rider CJ50FK passes its MOT first time more often than the Piaggio NRG: 82.5% vs 65.5%, a 17.0-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Easy Rider CJ50FK Piaggio NRG
First-time pass rate 82.5% 65.5%
Outright fail rate 3.0% 27.4%
Vs comparable bikes (age & mileage adjusted) +3.2 pts -6.0 pts
Engine size 49cc 49cc
Rank among all models #3073 of 5428 #4992 of 5428
Median miles at test 3 9,874
MOT tests analysed 1,042 40,458
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 Easy Rider CJ50FK Piaggio NRG
Lights & signalling 1.1% 15.0%
Steering & suspension 0.6% 15.5%
Brakes 1.6% 10.2%
Tyres & wheels 0.4% 4.7%
Fuel & exhaust 0.1% 3.8%
Structure & body 0.4% 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 Easy Rider CJ50FK Piaggio NRG
2007 88.0% 63.9%
2008 82.6% 65.2%
2009 77.0% 62.2%
2010 78.1% 63.2%
2011 79.5% 63.9%
2012 77.9% 63.4%
2013 81.2% 64.1%
2014 86.0% 67.4%

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

Easy Rider CJ50FK vs Piaggio NRG FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Easy Rider CJ50FK or the Piaggio NRG?

The Easy Rider CJ50FK passes its MOT first time more often than the Piaggio NRG: 82.5% vs 65.5%, a 17.0-point lead. Adjusted for age, mileage and test class, the Easy Rider CJ50FK still comes out ahead: +3.2 points vs comparable bikes for the Easy Rider CJ50FK, -6.0 for the Piaggio NRG. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Easy Rider CJ50FK fail its MOT on most?

Brakes: 1.6% of Easy Rider CJ50FK MOT tests failed on it, then lights & signalling (1.1%).

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%).

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