RIEJU MARATHON 125

124cc Petrol Class 1

#5097 of 5426 overall #2 of 16 RIEJUs #565 of 734 commuter bikes

63.2%

first-time pass rate

28.9%

failed outright

7,420

median miles at test

280

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2016–2017

The MARATHON 125's first-time pass rate has risen 4.3 points since 2016, 58.6% to 62.9%.

What fails on a MARATHON 125

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	69	23.9
lamps and reflectors	63	21.8
brakes	51	17.6
steering and suspension	29	10
tyres and wheels	19	6.6
suspension	16	5.5
structure and attachments	14	4.8
drive system	13	4.5
fuel and exhaust	8	2.8
steering	7	2.4

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 MARATHON 125 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests HONDA CG125 72.2% pass · 89.3k tests HONDA CBF125 73.3% pass · 84.4k tests GILERA RUNNER 70.8% pass · 69.9k 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 MARATHON 125.

Pass rate by registration year

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

Best year to buy used: 2013 (62.6% pass). Weakest: 2012 (61.2%).

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.