Should I check the MOT history before buying a 2004 Honda Cg 125 4?

Yes. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. A full MOT history analysis will highlight patterns that a single test result won't reveal.

What corrosion should I look for when inspecting a 2004 Honda Cg 125 4?

Check brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that is expensive to fix and can fail an MOT.

How are tyres and brakes typically on a 2004 Honda Cg 125 4?

Tyres and brakes are the most common advisory items on vehicles of this age. Budget for replacement if they are near the limit, and factor this into your offer price.

Is the 2004 Honda Cg 125 4 reliable?

Based on MOT data from 184 vehicles, the 2004 Honda Cg 125 4 has a first-time MOT pass rate of 84.1%, indicating generally reliable for its class. Always check the full MOT history of any specific vehicle before buying.

Do I need an HPI check when buying a 2004 Honda Cg 125 4?

Yes. The MOT history will not show outstanding finance, insurance write-offs, or stolen status. An HPI check covers these areas and should be part of any used car purchase.

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Honda Cg 125 4 (2004)

184 real MOT outcomes analysed • 84.1% first-time pass rate

2004 Honda Cg 125 4

CarHunch analysed 184 real MOT records for the 2004 Honda Cg 125 4. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Compare Models

This 2004 Honda CG 125 is a reliability concern: only 35% pass their MOT first time, nearly half the UK average of 80%, with nearly a quarter of tested bikes carrying at least one dangerous defect. The petrol-only model's 29.4% pass rate is particularly weak, suggesting either age-related wear or endemic mechanical issues in surviving examples.

At a median of 12,759 miles these are genuinely low-mileage machines, yet they're still failing heavily and averaging 0.53 failures and 2.3 advisories per test—pointing to deterioration from sitting idle rather than hard use. Before buying one, budget for remedial work and have a pre-purchase inspection done by someone who knows small-capacity bikes well, because the MOT data says these need money spent on them.

We have limited data for the 2004 Honda Cg 125 4 — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 20 of these vehicles have had a dangerous MOT failure at some point — usually tyres or brakes, and often a one-off issue rather than a persistent problem. The group stats won't tell you which one you're looking at.

First-time pass

84.1%

UK average ~80%

Around average

Dangerous (ever)

6.5%

At least once in MOT history

Check this vehicle

Avg failures / car

0.53

Over 3.6 tests on record

Moderate

Typical mileage

13k

Middle half: 7k–25k

For context

These stats describe 184 vehicles as a group. The specific vehicle you're looking at could be the one good example or the one outlier. Run its registration to find out.

Average reliability — agree?

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 184 Honda Cg 125 4 cars.

Before you buy a 2004 Honda Cg 125 4

Based on MOT data from 184 vehicles — here's what to check.

📋 Check the full MOT history. 6.5% of these vehicles have had a dangerous defect recorded - recurring advisories often signal problems years before they become failures.
Search the reg on CarHunch for the full MOT history, reliability stats and a free AI-powered analysis of that exact vehicle.
🔍 Brake pipes, sills and subframes are the key areas on a vehicle this age — structural rust is hard to spot without getting underneath. A mechanic will check all of this before you commit, and give you a concrete basis to negotiate on price. Inspection →
📄 Outstanding finance, insurance write-offs and clocking won't appear in the MOT records — a dedicated history check covers all of this. Our link gets you 20% off automatically. History Get 20% off via CarHunch

Pass Rate by Fuel Type

Fuel type	Vehicles	Pass rate	Avg failures
Petrol (92%)	169	82.7%	0.58

Mileage Distribution

Most 2004 Honda Cg 125 4 vehicles sit in the blue band. If the vehicle you're looking at is outside it, it's either unusually low or high mileage for its age.

12,759

typical

7,258

low mileage

24,607

high mileage

Half of all 2004 Honda Cg 125 4 vehicles fall between 7,258 and 24,607 miles.

Is the mileage you're seeing normal?

✓ Under 7,258 miles — lower than most. Could be great, or could be a vehicle that rarely moved. Check test frequency and mileage progression in the MOT history.

✓ 7,258–24,607 miles — normal for age. This is where most 2004 Honda Cg 125 4s sit.

⚠ Over 33,219 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2004 Honda Cg 125 4 — Still on the Road

Numbers are thinning — 34% of 2004 Honda Cg 125 4s are still active.

Numbers are declining — 10 vehicles still getting MOTs in 2025 (34% of peak).

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2014–2025.
* The 2020 dip reflects the government's COVID-19 MOT exemption, which allowed certificates to be extended by six months — fewer tests were conducted that year.

MOT History Averages

3.6

Avg MOT tests per vehicle

0.53

Avg failures per vehicle

2.3

Avg advisories per vehicle

Other model years — Honda Cg 125 4: All Cg 125 4 years → Which year to buy? →

2005 2006

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Compare with another model

See how the 2004 Honda Cg 125 4 stacks up against a rival.

Average reliability — agree?