YAMAHA T50

49cc Petrol Class 1

#4298 of 5426 overall #320 of 409 YAMAHAs #141 of 455 moped bikes

75.0%

first-time pass rate

14.3%

failed outright

14,009

median miles at test

224

MOT tests, 2005–2025

Pass rate by mileage

how the T50's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage T50 passes first time 77.6% of the time; by 20k that's 68.6%.

First-time pass rate by odometer reading at test, 10,000-mile bands for this model. Mileage is the strongest reliability signal. See the full curve.

What fails on a T50

failure defects by component group · advisories excluded

Component group	Defects	% of defects
lighting and signalling	58	50.4
brakes	20	17.4
steering and suspension	13	11.3
tyres and wheels	8	7
body and structure	5	4.3
fuel and exhaust	4	3.5
reg plates and vin	2	1.7
suspension	2	1.7
tyres	2	1.7
driving controls	1	0.9

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 T50 beats 4 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 T50.

Pass rate by registration year

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

Best year to buy used: 1988 (88.5% pass). Weakest: 1987 (63.1%).

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.