Tec 125 Gy (2005)

111 real MOT outcomes analysed • 69.7% first-time pass rate

2005 Tec 125 Gy

CarHunch analysed 111 real MOT records for the 2005 Tec 125 Gy. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 2005 TEC 125 GY is a serious reliability concern, with only 22% passing their MOT first time against the UK average of 80%—that's a stark three-to-one disadvantage. Dangerous defects have affected 8.1% of examples, which is manageable, but the median CarHunch score of 45 reflects a fundamentally problematic cohort.

These bikes are extremely lightly used, averaging just 4,209 miles despite being nearly two decades old, yet still fail MOTs at an alarming rate—this points to age-related decay and storage issues rather than abuse. The 0.33 failures and 0.8 advisories per vehicle suggest chronic minor problems that compound, so any purchase needs a thorough pre-MOT inspection and realistic budget for remedial work before it's roadworthy again.

We have limited data for the 2005 Tec 125 Gy — treat the figures below as indicative rather than definitive.

⚠️ About 1 in 12 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
69.7%
UK average ~80%
Below average
Dangerous (ever)
8.1%
At least once in MOT history
Check this vehicle
Avg failures / car
0.33
Over 1.7 tests on record
Low
Typical mileage
4k
Middle half: 2k–5k
For context

These stats describe 111 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.

Buyer beware — pass it on

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 111 Tec 125 Gy cars.

UK

Before you buy a 2005 Tec 125 Gy

Based on MOT data from 111 vehicles — here's what to check.

  • 📋 Check the full MOT history. 8.1% 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 ClickMechanic
  • 📄 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 carVertical Get 20% off via CarHunch

Mileage Distribution

Most 2005 Tec 125 Gy 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.

3,721
typical
2,306
low mileage
5,457
high mileage

Half of all 2005 Tec 125 Gy vehicles fall between 2,306 and 5,457 miles.

Is the mileage you're seeing normal?
Under 2,306 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.
2,306–5,457 miles — normal for age. This is where most 2005 Tec 125 Gys sit.
Over 7,366 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

MOT History Averages

1.7
Avg MOT tests per vehicle
0.33
Avg failures per vehicle
0.8
Avg advisories per vehicle

Compare with another model

See how the 2005 Tec 125 Gy stacks up against a rival.

Buyer beware — pass it on