YAMAHA CS 50 JOG RR

49cc Petrol Class 1

#4837 of 5426 overall #379 of 409 YAMAHAs #265 of 455 moped bikes

68.3%

first-time pass rate

22.3%

failed outright

3,516

median miles at test

3,493

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2008–2025

The CS 50 JOG RR's first-time pass rate has fallen 10.1 points since 2008, 69.4% to 59.3%.

What fails on a CS 50 JOG RR

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
lighting and signalling	621	30.7	2.5×
brakes	449	22.2	2.2×
lamps and reflectors	282	13.9	2.5×
tyres and wheels	178	8.8	1.9×
steering and suspension	157	7.8	1.3×
fuel and exhaust	97	4.8	3.4×
tyres	74	3.7	2.4×
structure and attachments	65	3.2	2.0×
body and structure	54	2.7	2.3×
steering	45	2.2	2.8×

Defects recorded against failed normal tests, 2005–2025, grouped by DVSA inspection section. One test can record multiple defects. "vs all bikes" is how often this model's tests record a defect in the group, as a multiple of the all-bike rate.

How rivals compare

same type, similar capacity, high test volume

On first-time pass rate the CS 50 JOG RR beats 2 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 CS 50 JOG RR.

Pass rate by registration year

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

Best year to buy used: 2010 (71.8% pass). Weakest: 2013 (65.4%).

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.

YAMAHA CS 50 JOG RR FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA CS 50 JOG RR reliable?

The YAMAHA CS 50 JOG RR is less reliable than average for its class: 68.3% of its 3,493 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #4837 of 5426 models.

What does a CS 50 JOG RR fail its MOT on most?

lighting and signalling — 31% of all defects recorded against failed CS 50 JOG RR tests.

What is the best year of CS 50 JOG RR to buy used?

By first-time pass rate, 2010-registered examples do best (71.8%) and 2013 worst (65.4%). Condition and history still trump the year.