Sym Jet 14 125 Ac E5 (2021)

383 real MOT outcomes analysed • 84.4% first-time pass rate

2021 Sym Jet 14 125 Ac E5

CarHunch analysed 383 real MOT records for the 2021 Sym Jet 14 125 Ac 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 Colour Breakdown Compare Models

Moderate sample. 383 vehicles on record. Figures are indicative — the specific vehicle's history matters more than these averages.

This 2021 SYM JET 14 is a concern: only 52.4% pass first time, well below the UK average of 80%, and 12.5% have recorded dangerous defects—a meaningful safety risk for a bike this young. Petrol models show the same weak 51.2% pass rate, so fuel type isn't the issue here.

The median mileage of 12,320 is reasonable for a three-year-old scooter, yet these bikes are averaging 0.26 failures and 0.8 advisories per test, suggesting recurring maintenance problems despite low annual wear. Before buying one, get a pre-purchase inspection focused on the electrical and braking systems, and factor in higher-than-normal servicing costs.

The 2021 Sym Jet 14 125 Ac E5 passes its MOT first time at roughly the UK average rate (84.4%) — solid but worth checking this vehicle's history carefully.

⚠️ 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
84.4%
UK average ~80%
Around average
Dangerous (ever)
12.5%
At least once in MOT history
Check this vehicle
Avg failures / car
0.26
Over 1.6 tests on record
Low
Typical mileage
12k
Middle half: 7k–19k
For context
🔧 Average reliability. Passes at roughly the UK rate — not a standout, not a problem vehicle. Individual history makes all the difference.
🔍 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 383 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 383 Sym Jet 14 125 Ac E5 cars.

UK

Before you buy a 2021 Sym Jet 14 125 Ac E5

Based on MOT data from 383 vehicles — here's what to check.

  • 📋 Check the full MOT history. 12.5% 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 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 (98%) 374 84.1% 0.27

Colour Breakdown

Based on 1,371 Sym Jet 14 125 Ac E5 vehicles registered in the UK — across all years. From DVLA registration records.

Grey 26.9%
369
Blue 20%
274
Black 18.8%
258
Red 17.5%
240
White 12.8%
175
Green 3.4%
46
Brown 0.7%
9

Mileage Distribution

Most 2021 Sym Jet 14 125 Ac 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.

12,320
typical
6,522
low mileage
18,817
high mileage

Half of all 2021 Sym Jet 14 125 Ac E5 vehicles fall between 6,522 and 18,817 miles.

Is the mileage you're seeing normal?
Under 6,522 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.
6,522–18,817 miles — normal for age. This is where most 2021 Sym Jet 14 125 Ac E5s sit.
Over 25,402 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
0.26
Avg failures per vehicle
0.8
Avg advisories per vehicle
Other model years — Sym Jet 14 125 Ac E5: All Jet 14 125 Ac E5 years → Which year to buy? →
2022 2023 2024

Or browse all models: Sym →

Compare with another model

See how the 2021 Sym Jet 14 125 Ac E5 stacks up against a rival.

Average reliability — agree?