Royal Alloy GP 300 LC E5 vs Honda Forza 300/350

The Royal Alloy GP 300 LC E5 passes its MOT first time more often than the Honda Forza 300/350: 92.7% vs 89.6%, a 3.1-point lead.

MOT reliability, side by side

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

Metric	Royal Alloy GP 300 LC E5	Honda Forza 300/350
First-time pass rate	92.7%	89.6%
Outright fail rate	4.9%	7.3%
Vs comparable bikes (age & mileage adjusted)	+2.8 pts	+2.6 pts
Engine size	278cc	279cc
Rank among all models	#344 of 5428	#1077 of 5428
Median miles at test	2,696	9,648
MOT tests analysed	246	10,821
Most common failure	suspension	brakes

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.

ROYAL ALLOY GP 300 LC E5 92.7% pass · 246 tests HONDA Forza 300/350 89.6% pass · 10.8k tests

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