BIKERELIABILITY Reg check
League table/ HAOTIAN/HT 125-8
Model report · 2005–2025

HAOTIAN HT 125-8

124cc Petrol Class 1
#5327 of 5428 overall #1 of 1 HAOTIANs #686 of 734 commuter bikes
56.0%
first-time pass rate
26.3%
failed outright
7,290
median miles at test
775
MOT tests, 2005–2025
-17.3pp
vs expected · age & mileage

The pass rate is the MOT first-time pass: a roadworthiness check of the items an MOT covers (brakes, lights, tyres, steering, structure, emissions), not a full mechanical inspection of engine or gearbox internals. It is a reliability signal, not a complete measure of mechanical reliability. What this measures.

“vs expected” adjusts for age, mileage and test class, so a cherished classic and a hard-used commuter are compared fairly. How this works.

Pass rate over time

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

The HT 125-8's first-time pass rate has risen 6.3 points since 2010, 50.8% to 57.1%.

47%58%68%2010: 50.8% pass (59 tests)2011: 55.0% pass (120 tests)2012: 58.3% pass (115 tests)2013: 57.4% pass (101 tests)2014: 53.9% pass (89 tests)2015: 51.2% pass (84 tests)2016: 64.9% pass (57 tests)2017: 57.1% pass (42 tests)20102017

Pass rate by mileage

how the HT 125-8's first-time pass rate falls with the odometer · class average 73.4%

A low-mileage HT 125-8 passes first time 56.4% of the time; by 20k that's 57.1%.

51%55%58%0k: 56.4% pass (512 tests)10k: 52.2% pass (180 tests)20k: 57.1% pass (56 tests)0k10k20k

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 HT 125-8

failure defects by component group · advisories excluded
Component group Share of defects Defects % of defects vs all bikes
lighting and signalling
231 32.9 3.7×
steering and suspension
122 17.4 3.6×
brakes
97 13.8 2.1×
drive system
65 9.2 7.7×
lamps and reflectors
50 7.1 1.7×
body and structure
47 6.7 9.7×
fuel and exhaust
31 4.4 4.3×
structure and attachments
23 3.3 2.6×
tyres and wheels
21 3 1.2×
suspension
16 2.3 1.6×

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 HT 125-8 beats 0 of its 4 closest rivals (YAMAHA YBR 125, HONDA CG125, HONDA CBF125).

YAMAHA YBR 125 71.0% pass · 125k tests Compare head-to-head →
HONDA CG125 72.2% pass · 89.3k tests Compare head-to-head →
HONDA CBF125 73.3% pass · 84.4k tests Compare head-to-head →
GILERA RUNNER 70.8% pass · 69.9k tests Compare head-to-head →

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 HT 125-8.

Compare with any bike

rival not listed above? pick any model to see it head-to-head with the HT 125-8

More HAOTIAN models

other HAOTIAN bikes ranked by MOT pass rate
HAOTIAN VIXEN 59.0% pass · 105 tests

See all HAOTIAN models →

Pass rate by registration year

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

Best year to buy used: 2009 (65.9% pass). Weakest: 2006 (52.3%).

50%59%69%2006: 52.3% pass (132 tests)2007: 57.0% pass (263 tests)2008: 53.4% pass (294 tests)2009: 65.9% pass (82 tests)200620082009

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.

HAOTIAN HT 125-8 FAQ

answers computed from the data above · terms in the glossary

Is the HAOTIAN HT 125-8 reliable?

The HAOTIAN HT 125-8 is less reliable than average for its class: 56.0% of its 775 MOT tests (2005–2025) passed first time, against a class average of 73.4%. That ranks it #5327 of 5428 models.

What does a HT 125-8 fail its MOT on most?

lighting and signalling — 33% of all defects recorded against failed HT 125-8 tests.

What is the best year of HT 125-8 to buy used?

By first-time pass rate, 2009-registered examples do best (65.9%) and 2006 worst (52.3%). Condition and history still trump the year.

How many miles will a HT 125-8 last?

The median HT 125-8 shows 7,290 miles at test, and examples around 20k miles still pass 57.1% of the time — mileage alone rarely kills one.

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