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

Data as of: DVSA MOT results to 2025

Royal Alloy TG 300 LC E5 vs Piaggio X9

The Royal Alloy TG 300 LC E5 passes its MOT first time more often than the Piaggio X9: 92.9% vs 77.0%, a 15.9-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Royal Alloy TG 300 LC E5 Piaggio X9
First-time pass rate 92.9% 77.0%
Outright fail rate 6.3% 17.5%
Vs comparable bikes (age & mileage adjusted) +2.7 pts -4.4 pts
Engine size 278cc 244cc
Median miles at test 2,924 12,186
MOT tests analysed 127 21,703
Most common failure lamps and reflectors steering and suspension

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.

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