Yamaha Dt125 (2001)

526 real MOT outcomes analysed • 75.7% first-time pass rate

2001 Yamaha Dt125

CarHunch analysed 526 real MOT records for the 2001 Yamaha Dt125. 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 Common Issues Check a Specific Reg Buyer's Checklist Pass Rate by Fuel Mileage Distribution Still on the Road MOT Averages Colour Breakdown Compare Models

The 2001 Yamaha DT125 falls slightly below the UK average with a first-time MOT pass rate of 75.7% versus 80%, and there's a meaningful concern here: 21.7% of these bikes have recorded dangerous defects over their lifetime, which is notably higher than typical and suggests safety-critical issues aren't uncommon. This isn't a vehicle to buy sight-unseen or without a thorough pre-purchase inspection.

At nearly 16,000 miles on average, these machines have been ridden fairly hard for their age, yet they're still presenting an average of 2.35 failures and 7.7 advisories per test. Before committing to one, get a full MOT history check and have a mechanic inspect the brakes and steering specifically—the high dangerous defect rate suggests these systems need particular scrutiny.

The 2001 Yamaha Dt125 passes its MOT first time at roughly the UK average rate (75.7%) — solid but worth checking this vehicle's history carefully.

⚠️ Over 1 in 5 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
75.7%
UK average ~80%
Around average
Dangerous (ever)
21.7%
At least once in MOT history
Check this vehicle
Avg failures / car
2.35
Over 8.4 tests on record
High
Typical mileage
14k
Middle half: 9k–21k
For context
🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.
🔧 Expect consumable spend. An average of 7.7 advisories per vehicle tells you wear items (tyres, brakes) get flagged regularly. Budget for them — they're not surprises.
🔍 The dangerous defect figure is real. Most are one-off tyre failures or brake issues — not structural problems. But it's exactly why checking the individual vehicle's history is essential, not optional.

These stats describe 526 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?

What tends to go wrong

Across 526 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Tyre wear 40.9%
Rear Tyre worn close to the legal limit · Front Tyre worn close to the legal limit
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Other issues 38.1%
Drive chain worn but not considered excessive · Front Wheel spoke excessively loose
Lighting 34%
Drive chain slightly loose · Front Wheel has a slightly distorted bead rim. · Rear reflector on motorcycle missing · …
Usually cheap to fix. Worth confirming all lights work before collecting.
Brake wear 22.8%
Front Brake disc(s) slightly worn · Rear Brake disc(s) slightly worn · Front Brake pad(s) close to minimum limit
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Suspension & steering 20.8%
Rear suspension bush has slight free play
Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.
Exhaust & emissions 16.5%
Exhaust noisy

Data covers a 3-year window centred on 2001.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 526 Yamaha Dt125 cars.

UK

Before you buy a 2001 Yamaha Dt125

Based on MOT data from 526 vehicles — here's what to check.

  • 📋 Check the full MOT history. 21.7% 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

Pass Rate by Fuel Type

Fuel type Vehicles Pass rate Avg failures
Petrol (100%) 525 75.7% 2.36

Colour Breakdown

Based on 7,038 Yamaha Dt125 vehicles registered in the UK — across all years. From DVLA registration records.

Blue 46.7%
3,286
Black 37.6%
2,645
White 10.2%
720
Red 3.8%
265
Purple 0.6%
43
Yellow 0.3%
22
Multi-colour 0.2%
17
Green 0.2%
15
Silver 0.2%
13
Orange 0.2%
12

Mileage Distribution

Most 2001 Yamaha Dt125 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.

14,196
typical
9,374
low mileage
21,444
high mileage

Half of all 2001 Yamaha Dt125 vehicles fall between 9,374 and 21,444 miles.

Is the mileage you're seeing normal?
Under 9,374 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.
9,374–21,444 miles — normal for age. This is where most 2001 Yamaha Dt125s sit.
Over 28,949 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2001 Yamaha Dt125 — Still on the Road

Numbers are thinning — 42% of 2001 Yamaha Dt125s are still active.

Numbers are declining — 72 vehicles still getting MOTs in 2025 (42% of peak).

173 72 2014 2025

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

8.4
Avg MOT tests per vehicle
2.35
Avg failures per vehicle
7.7
Avg advisories per vehicle
Other model years — Yamaha Dt125: All Dt125 years → Which year to buy? →
1982 1983 1985 1987 1988 1989 1990 1991 1992 1997 1998 1999 2000 2002 2003 2004 2005 2006 2007

Or browse all models: Yamaha →

Compare with another model

See how the 2001 Yamaha Dt125 stacks up against a rival.

Average reliability — agree?