Cagiva Roadster vs Honda CG125

The Honda CG125 passes its MOT first time more often than the Cagiva Roadster: 72.2% vs 57.1%, a 15.1-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Cagiva Roadster	Honda CG125
First-time pass rate	57.1%	72.2%
Outright fail rate	29.3%	16.8%
Vs comparable bikes (age & mileage adjusted)	-14.5 pts	+0.7 pts
Engine size	124cc	124cc
Rank among all models	#5305 of 5428	#4568 of 5428
Median miles at test	14,069	17,460
MOT tests analysed	413	89,345
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.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested

Test year	Cagiva Roadster	Honda CG125
2006	69.6%	76.2%
2007	55.6%	74.3%
2008	44.1%	73.3%
2010	60.0%	71.8%
2011	45.7%	70.6%
2012	43.3%	70.6%

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	Cagiva Roadster	Honda CG125
0k-10k miles	60.4%	79.3%
10k-20k miles	56.8%	73.0%
20k-30k miles	56.4%	68.3%
30k-40k miles	50.0%	66.4%

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

CAGIVA ROADSTER 57.1% pass · 413 tests HONDA CG125 72.2% pass · 89.3k tests

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