BIKERELIABILITY Reg check
League table/ Benelli Naked 50/vs Piaggio NRG
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Benelli Naked 50 vs Piaggio NRG

The Benelli Naked 50 passes its MOT first time more often than the Piaggio NRG: 70.2% vs 65.5%, a 4.7-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Benelli Naked 50 Piaggio NRG
First-time pass rate 70.2% 65.5%
Outright fail rate 23.6% 27.4%
Vs comparable bikes (age & mileage adjusted) -4.0 pts -6.0 pts
Engine size 49cc 49cc
Rank among all models #4717 of 5428 #4992 of 5428
Median miles at test 6,373 9,874
MOT tests analysed 208 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.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test
Mileage Benelli Naked 50 Piaggio NRG
0k-10k miles 72.8% 71.3%
10k-20k miles 61.0% 60.6%

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

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