RIEJU MRT 450 MARATHON

449cc Petrol Class 2

77.9%

first-time pass rate

14.7%

failed outright

2,322

median miles at test

MOT tests, 2005–2025

What fails on a MRT 450 MARATHON

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	18	40.9
lamps and reflectors	9	20.5
brakes	5	11.4
suspension	3	6.8
reg plates and vin	3	6.8
tyres and wheels	2	4.5
steering	1	2.3
body and structure	1	2.3
steering and suspension	1	2.3
structure and attachments	1	2.3

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the MRT 450 MARATHON beats 2 of its 4 closest rivals (KAWASAKI ER5, YAMAHA XV535, SUZUKI GS500).

KAWASAKI ER5 77.4% pass · 53.1k tests YAMAHA XV535 82.7% pass · 48.1k tests SUZUKI GS500 76.4% pass · 44.9k tests SUZUKI AN400 86.2% pass · 27.1k tests

Rivals share this bike's type and sit within ±30% of its engine capacity, ≥ 5,000 tests. Card colour = better/worse first-time pass rate than the MRT 450 MARATHON.

Pass rate by registration year

how each model-year cohort fares · registration year from first use date

Best year to buy used: 2011 (80.0% pass). Weakest: 2011 (80.0%).

First-time pass rate by the year each bike was first registered (cohorts with ≥ 50 tests). Older cohorts are survivors: the worst examples have already left the road, which tends to lift the earliest years.