Should I check the MOT history before buying a 2021 Yamaha Mt 125 (mtn 125 A)?

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 2021 Yamaha Mt 125 (mtn 125 A)?

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 2021 Yamaha Mt 125 (mtn 125 A)?

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 2021 Yamaha Mt 125 (mtn 125 A) reliable?

Based on MOT data from 674 vehicles, the 2021 Yamaha Mt 125 (mtn 125 A) has a first-time MOT pass rate of 87.1%, 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 2021 Yamaha Mt 125 (mtn 125 A)?

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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Yamaha Mt 125 (mtn 125 A) (2021)

674 real MOT outcomes analysed • 87.1% first-time pass rate

2021 Yamaha Mt 125 (mtn 125 A)

CarHunch analysed 674 real MOT records for the 2021 Yamaha Mt 125 (mtn 125 A). 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 Colour Breakdown Compare Models

The 2021 Yamaha MT 125 has a first-time MOT pass rate of 69.8%, notably below the UK average of 80%, suggesting reliability concerns for this young cohort. With only 8.5% of bikes ever developing a dangerous defect, safety isn't the primary worry—the issue is instead the higher frequency of non-critical failures and advisories dragging down the headline pass rate.

At a median mileage of 8,331 miles for a three-year-old bike, these machines are running relatively gently, yet they're still accumulating 0.3 failures and 1.2 advisories per vehicle on average, pointing to durability or build-quality issues rather than owner abuse. If you're considering this model, budget for minor repairs beyond routine servicing, and ask any private seller for their full MOT history to spot which components keep failing.

The 2021 Yamaha Mt 125 (mtn 125 A) passes its MOT first time more often than most UK vehicles (87.1% vs ~80% average) — and when it does fail, it's usually something minor and cheap to fix.

⚠️ 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

87.1%

UK average ~80%

Around average

Dangerous (ever)

8.5%

At least once in MOT history

Check this vehicle

Avg failures / car

0.3

Over 1.9 tests on record

Low

Typical mileage

Middle half: 5k–13k

For context

✅ Good baseline reliability. A 87.1% first-time pass rate puts this well above the UK average — it's a well-sorted vehicle in this age bracket.

🔍 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 674 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.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 674 Yamaha Mt 125 (mtn 125 A) cars.

Before you buy a 2021 Yamaha Mt 125 (mtn 125 A)

Based on MOT data from 674 vehicles — here's what to check.

📋 Check the full MOT history. 8.5% 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 (99%)	668	87.1%	0.31

Colour Breakdown

Based on 3,820 Yamaha Mt 125 (mtn 125 A) vehicles registered in the UK — across all years. From DVLA registration records.

Grey 46.3%

1,770

Black 27.7%

1,057

Blue 26%

993

Mileage Distribution

Most 2021 Yamaha Mt 125 (mtn 125 A) 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.

8,331

typical

4,757

low mileage

12,787

high mileage

Half of all 2021 Yamaha Mt 125 (mtn 125 A) vehicles fall between 4,757 and 12,787 miles.

Is the mileage you're seeing normal?

✓ Under 4,757 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.

✓ 4,757–12,787 miles — normal for age. This is where most 2021 Yamaha Mt 125 (mtn 125 A)s sit.

⚠ Over 17,262 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2021 Yamaha Mt 125 (mtn 125 A) — Still on the Road

Almost all 2021 Yamaha Mt 125 (mtn 125 A)s are still on the road.

Strong survival — 436 vehicles still getting MOTs in 2025, 95% of the peak.

Based on vehicles from this manufacture year that had at least one MOT test in each calendar year. Data from 2023–2025.

MOT History Averages

1.9

Avg MOT tests per vehicle

0.3

Avg failures per vehicle

1.2

Avg advisories per vehicle

Other model years — Yamaha Mt 125 (mtn 125 A): All Mt 125 (mtn 125 A) years → Which year to buy? →

2020 2022 2023 2024 2025

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