YAMAHA CYGNUS

124cc Petrol Class 1

#3914 of 5426 overall #273 of 409 YAMAHAs #155 of 734 commuter bikes

78.0%

first-time pass rate

15.7%

failed outright

14,231

median miles at test

592

MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2010–2017

The CYGNUS's first-time pass rate has fallen 10.9 points since 2010, 83.9% to 73.0%.

Pass rate by mileage

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

A low-mileage CYGNUS passes first time 85.3% of the time; by 30k that's 81.1%.

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 CYGNUS

failure defects by component group · advisories excluded

Component group	Defects	% of defects	vs all bikes
brakes	52	31.1	1.7×
tyres and wheels	32	19.2	2.6×
lighting and signalling	22	13.2	0.8×
steering and suspension	22	13.2	1.1×
tyres	13	7.8	2.7×
lamps and reflectors	9	5.4	0.6×
suspension	5	3	0.9×
steering	5	3	2.0×
structure and attachments	4	2.4	0.7×
fuel and exhaust	3	1.8	0.7×

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 CYGNUS beats 4 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 CYGNUS.

Pass rate by registration year

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

Best year to buy used: 2007 (87.0% pass). Weakest: 2009 (67.4%).

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 CYGNUS FAQ

answers computed from the data above · terms in the glossary

Is the YAMAHA CYGNUS reliable?

The YAMAHA CYGNUS is more reliable than average for its class: 78.0% of its 592 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #3914 of 5426 models.

What does a CYGNUS fail its MOT on most?

brakes — 31% of all defects recorded against failed CYGNUS tests.

What is the best year of CYGNUS to buy used?

By first-time pass rate, 2007-registered examples do best (87.0%) and 2009 worst (67.4%). Condition and history still trump the year.

How many miles will a CYGNUS last?

The median CYGNUS shows 14,231 miles at test, and examples around 30k miles still pass 81.1% of the time — mileage alone rarely kills one.