HYOSUNG GT 650 COMET

647cc Petrol Class 2

#4469 of 5426 overall #5 of 23 HYOSUNGs #2722 of 2787 other bikes

73.3%

first-time pass rate

17.8%

failed outright

11,564

median miles at test

258

MOT tests, 2005–2025

Pass rate by mileage

how the GT 650 COMET's first-time pass rate falls with the odometer · class average 84.9%

A low-mileage GT 650 COMET passes first time 74.5% of the time; by 20k that's 59.6%.

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 GT 650 COMET

failure defects by component group · advisories excluded

Component group	Defects	% of defects
brakes	42	37.8
lighting and signalling	20	18
tyres and wheels	12	10.8
lamps and reflectors	12	10.8
drive system	8	7.2
steering and suspension	7	6.3
fuel and exhaust	4	3.6
body and structure	2	1.8
driving controls	2	1.8
steering	2	1.8

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 GT 650 COMET beats 0 of its 4 closest rivals (KAWASAKI ZX-6R, SUZUKI GSF600, YAMAHA FZS600).

KAWASAKI ZX-6R 78.1% pass · 174k tests SUZUKI GSF600 77.3% pass · 143k tests YAMAHA FZS600 82.6% pass · 137k tests HONDA VFR800 FI 86.7% pass · 89.4k 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 GT 650 COMET.

Pass rate by registration year

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

Best year to buy used: 2006 (65.6% pass). Weakest: 2006 (65.6%).

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.