Sym Mask 125 (2020)

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

2020 Sym Mask 125

CarHunch analysed 161 real MOT records for the 2020 Sym Mask 125. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
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The 2020 SYM MASK 125 is a serious reliability concern, with a first-time pass rate of just 45.7%—well below the UK average of 80%. While the dangerous defect rate of 13.7% isn't extreme, the overall failure pattern suggests these bikes struggle to meet safety standards consistently.

At an average mileage of 11,309 miles for a four-year-old bike, these machines are running hard, and the data backs that up: owners are averaging 0.3 failures and 1.1 advisories per test, indicating recurring maintenance issues across the fleet. Before committing to one of these, have a trusted mechanic inspect any prospective purchase thoroughly, and budget for early repairs.

We have limited data for the 2020 Sym Mask 125 — 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)
13.7%
At least once in MOT history
Check this vehicle
Avg failures / car
0.3
Over 1.9 tests on record
Low
Typical mileage
8k
Middle half: 5k–14k
For context

These stats describe 161 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 161 Sym Mask 125 cars.

UK

Before you buy a 2020 Sym Mask 125

Based on MOT data from 161 vehicles — here's what to check.

  • 📋 Check the full MOT history. 13.7% 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 (99%) 160 82.9% 0.29

Mileage Distribution

Most 2020 Sym Mask 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.

8,255
typical
4,969
low mileage
13,834
high mileage

Half of all 2020 Sym Mask 125 vehicles fall between 4,969 and 13,834 miles.

Is the mileage you're seeing normal?
Under 4,969 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.
4,969–13,834 miles — normal for age. This is where most 2020 Sym Mask 125s sit.
Over 18,675 miles — higher than typical. Not necessarily a problem, but check service history and look out for advisory build-up on tyres and brakes.

2020 Sym Mask 125 — Still on the Road

Most 2020 Sym Mask 125s are still being driven.

49 vehicles still getting MOTs in 2025 — 74% of the peak remain.

66 49 2023 2025

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
1.1
Avg advisories per vehicle
Other model years — Sym Mask 125: All Mask 125 years → Which year to buy? →
2019

Or browse all models: Sym →

Compare with another model

See how the 2020 Sym Mask 125 stacks up against a rival.

Average reliability — agree?