BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
Model report · 2005–2025

HYOSUNG GV125

124cc Petrol Class 1
#5064 of 5426 overall #14 of 23 HYOSUNGs #544 of 734 commuter bikes
63.9%
first-time pass rate
24.4%
failed outright
10,705
median miles at test
2,280
MOT tests, 2005–2025

Pass rate over time

first-time pass rate by test year · 2006–2025

The GV125's first-time pass rate has fallen 8.9 points since 2006, 70.8% to 61.9%.

53%67%82%2006: 70.8% pass (48 tests)2007: 72.1% pass (68 tests)2008: 60.3% pass (68 tests)2009: 57.8% pass (83 tests)2010: 67.7% pass (133 tests)2011: 58.8% pass (165 tests)2012: 62.9% pass (202 tests)2013: 61.4% pass (207 tests)2014: 62.5% pass (216 tests)2015: 59.7% pass (191 tests)2016: 66.3% pass (166 tests)2017: 70.7% pass (140 tests)2018: 61.9% pass (105 tests)2019: 58.4% pass (89 tests)2020: 64.5% pass (76 tests)2021: 62.5% pass (96 tests)2022: 75.9% pass (79 tests)2023: 67.2% pass (61 tests)2024: 77.1% pass (35 tests)2025: 61.9% pass (42 tests)20062025

Pass rate by mileage

how the GV125's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage GV125 passes first time 71.8% of the time; by 40k that's 52.4%.

49%62%76%0k: 71.8% pass (1,052 tests)10k: 59.0% pass (724 tests)20k: 52.5% pass (305 tests)30k: 63.3% pass (120 tests)40k: 52.4% pass (42 tests)0k20k40k

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 GV125

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
514 30.6 3.2×
brakes
349 20.8 2.5×
drive system
202 12 8.2×
steering and suspension
165 9.8 1.9×
lamps and reflectors
157 9.4 2.4×
structure and attachments
98 5.8 4.0×
tyres and wheels
87 5.2 1.6×
fuel and exhaust
44 2.6 2.3×
body and structure
32 1.9 2.4×
tyres
29 1.7 1.5×

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 GV125 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

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 GV125.

Pass rate by registration year

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

Best year to buy used: 2012 (75.7% pass). Weakest: 2005 (55.1%).

51%65%80%2001: 63.4% pass (131 tests)2002: 61.9% pass (97 tests)2003: 61.6% pass (211 tests)2004: 60.5% pass (167 tests)2005: 55.1% pass (78 tests)2006: 69.6% pass (148 tests)2007: 57.8% pass (398 tests)2008: 68.4% pass (364 tests)2009: 66.4% pass (220 tests)2010: 59.5% pass (111 tests)2011: 64.9% pass (131 tests)2012: 75.7% pass (74 tests)2013: 70.3% pass (91 tests)200120072013

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.

HYOSUNG GV125 FAQ

answers computed from the data above · terms in the glossary

Is the HYOSUNG GV125 reliable?

The HYOSUNG GV125 is less reliable than average for its class: 63.9% of its 2,280 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5064 of 5426 models.

What does a GV125 fail its MOT on most?

lighting and signalling — 31% of all defects recorded against failed GV125 tests.

What is the best year of GV125 to buy used?

By first-time pass rate, 2012-registered examples do best (75.7%) and 2005 worst (55.1%). Condition and history still trump the year.

How many miles will a GV125 last?

The median GV125 shows 10,705 miles at test, and examples around 40k miles still pass 52.4% of the time — mileage alone rarely kills one.