Should I check the MOT history before buying a 2021 Sym Jet X 125 E5?

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 Sym Jet X 125 E5?

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 Sym Jet X 125 E5?

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 Sym Jet X 125 E5 reliable?

Based on MOT data from 121 vehicles, the 2021 Sym Jet X 125 E5 has a first-time MOT pass rate of 82.8%, 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 Sym Jet X 125 E5?

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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Sym Jet X 125 E5 (2021)

121 real MOT outcomes analysed • 82.8% first-time pass rate

2021 Sym Jet X 125 E5

CarHunch analysed 121 real MOT records for the 2021 Sym Jet X 125 E5. 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 MOT Averages Compare Models

The 2021 SYM JET X 125 E5 is a genuine reliability concern, with a first-time MOT pass rate of 58.2%—significantly below the UK average of 80%. Dangerous defects have appeared on 17.4% of these bikes, which is high enough to flag as a real buyer concern.

These machines are covering low mileage for their age (median 9,825 miles), yet still racking up 0.31 failures and 0.9 advisories per vehicle on average, suggesting mechanical or build quality issues rather than simple wear. If you're considering one, get a full pre-purchase inspection focused on why it's failing—don't rely on the MOT history alone.

We have limited data for the 2021 Sym Jet X 125 E5 — treat the figures below as indicative rather than definitive.

⚠️ Around 1 in 8 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

82.8%

UK average ~80%

Around average

Dangerous (ever)

17.4%

At least once in MOT history

Check this vehicle

Avg failures / car

0.31

Over 1.6 tests on record

Low

Typical mileage

10k

Middle half: 4k–15k

For context

These stats describe 121 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 121 Sym Jet X 125 E5 cars.

Before you buy a 2021 Sym Jet X 125 E5

Based on MOT data from 121 vehicles — here's what to check.

📋 Check the full MOT history. 17.4% 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%)	120	82.7%	0.31

Mileage Distribution

Most 2021 Sym Jet X 125 E5 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.

9,825

typical

4,140

low mileage

14,967

high mileage

Half of all 2021 Sym Jet X 125 E5 vehicles fall between 4,140 and 14,967 miles.

Is the mileage you're seeing normal?

✓ Under 4,140 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.

✓ 4,140–14,967 miles — normal for age. This is where most 2021 Sym Jet X 125 E5s sit.

⚠ Over 20,205 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

1.6

Avg MOT tests per vehicle

0.31

Avg failures per vehicle

0.9

Avg advisories per vehicle

Other model years — Sym Jet X 125 E5: All Jet X 125 E5 years → Which year to buy? →

2022 2023 2024

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Average reliability — agree?