RIEJU MRT3 50 PRO SM

50cc Petrol Class 1

50.5%

first-time pass rate

33.3%

failed outright

6,543

median miles at test

105

MOT tests, 2005–2025

What fails on a MRT3 50 PRO SM

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lamps and reflectors	44	32.4
structure and attachments	34	25
brakes	24	17.6
suspension	19	14
Identification of the vehicle	7	5.1
steering	6	4.4
audible warning (Horn)	1	0.7
wheels	1	0.7

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 MRT3 50 PRO SM beats 0 of its 4 closest rivals (PEUGEOT SPEEDFIGHT, PIAGGIO ZIP, PIAGGIO NRG).

PEUGEOT SPEEDFIGHT 65.2% pass · 83.7k tests PIAGGIO ZIP 71.3% pass · 79.0k tests PIAGGIO NRG 65.5% pass · 40.5k tests PEUGEOT VIVACITY 70.4% pass · 29.7k 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 MRT3 50 PRO SM.

Pass rate by registration year

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

Best year to buy used: 2019 (46.0% pass). Weakest: 2019 (46.0%).

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.