Should I check the MOT history before buying a 2020 Mutt Fat Sabbath 125?

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 2020 Mutt Fat Sabbath 125?

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 2020 Mutt Fat Sabbath 125?

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 2020 Mutt Fat Sabbath 125 reliable?

Based on MOT data from 162 vehicles, the 2020 Mutt Fat Sabbath 125 has a first-time MOT pass rate of 83.2%, 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 2020 Mutt Fat Sabbath 125?

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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Mutt Fat Sabbath 125 (2020)

162 real MOT outcomes analysed • 83.2% first-time pass rate

2020 Mutt Fat Sabbath 125

CarHunch analysed 162 real MOT records for the 2020 Mutt Fat Sabbath 125. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

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AI Analysis Reliability Overview Check a Specific Reg Buyer's Checklist Mileage Distribution Still on the Road MOT Averages Compare Models

The 2020 MUTT FAT SABBATH 125 is a concerning buy from a reliability standpoint: only 58.1% pass first time, well below the UK average of 80%, and 8.6% have recorded dangerous defects. This suggests either quality issues with the model or that owners aren't maintaining them properly, making it a risky choice for someone wanting hassle-free motoring.

These bikes are still relatively low-mileage at an average of 4,552 miles, so the poor pass rate isn't down to age-related wear—it points to inherent problems. With 0.39 failures and 0.9 advisories per vehicle on average, expect to budget for repairs, and before purchasing one, get a pre-buy inspection from a mechanic familiar with this model to identify what's actually failing.

We have limited data for the 2020 Mutt Fat Sabbath 125 — 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

83.2%

UK average ~80%

Around average

Dangerous (ever)

8.6%

At least once in MOT history

Check this vehicle

Avg failures / car

0.39

Over 2.1 tests on record

Low

Typical mileage

Middle half: 2k–6k

For context

These stats describe 162 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 162 Mutt Fat Sabbath 125 cars.

Before you buy a 2020 Mutt Fat Sabbath 125

Based on MOT data from 162 vehicles — here's what to check.

📋 Check the full MOT history. 8.6% 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

Mileage Distribution

Most 2020 Mutt Fat Sabbath 125 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.

3,219

typical

1,789

low mileage

6,191

high mileage

Half of all 2020 Mutt Fat Sabbath 125 vehicles fall between 1,789 and 6,191 miles.

Is the mileage you're seeing normal?

✓ Under 1,789 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.

✓ 1,789–6,191 miles — normal for age. This is where most 2020 Mutt Fat Sabbath 125s sit.

⚠ Over 8,357 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2020 Mutt Fat Sabbath 125 — Still on the Road

Most 2020 Mutt Fat Sabbath 125s are still being driven.

Strong survival — 65 vehicles still getting MOTs in 2025, 87% 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

2.1

Avg MOT tests per vehicle

0.39

Avg failures per vehicle

0.9

Avg advisories per vehicle

Other model years — Mutt Fat Sabbath 125: All Fat Sabbath 125 years → Which year to buy? →

2021 2022

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Average reliability — agree?