Triumph

Triumph Street (2021)

117 real MOT outcomes analysed • 94.7% first-time pass rate

2021 Triumph Street

CarHunch analysed 117 real MOT records for the 2021 Triumph Street. Real test outcomes — pass rates, defect profiles, mileage data — from verified DVLA records. Updated as new MOTs are recorded.
Which year to buy? →

On this page
AI Analysis Reliability Overview Common Issues Check a Specific Reg Buyer's Checklist Mileage Distribution MOT Averages Compare Models

The 2021 Triumph Street is a reliable performer, with a first-time MOT pass rate of 94.7%—well above the UK average of 80%—and a dangerous defect rate of just 4.3%, suggesting good safety standards across the sample. When vehicles do fail, it's rare: only 0.15 failures per car on average, with most issues appearing as minor advisories rather than serious problems.

At an average mileage of 4,839 miles, these bikes are still very young and lightly used, so the strong pass rate reflects low wear rather than inherent robustness over time. If you're considering one, prioritise a pre-purchase inspection focused on the battery and electrical systems—the 0.4 advisories per bike suggest these crop up occasionally—and ride out the warranty period before committing to major spending.

We have limited data for the 2021 Triumph Street — treat the figures below as indicative rather than definitive.

First-time pass
94.7%
UK average ~80%
Better than average
Dangerous (ever)
4.3%
At least once in MOT history
Check this vehicle
Avg failures / car
0.15
Over 2 tests on record
Low
Typical mileage
4k
Middle half: 2k–7k
For context

These stats describe 117 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.

A solid choice — agree?

What tends to go wrong

Across 117 vehicles — figures show how many had each issue flagged at least once in their MOT history.

Exhaust & emissions 29.3%
Exhaust noisy
Tyre wear 24.6%
Front Tyre worn close to the legal limit · Rear Tyre worn close to the legal limit · Front Tyre tread depth is below minimum requirements of 1.0mm
Budget for a full set — on a vehicle this age, tyres are expected consumables. An inspection will confirm how much is left.
Brake wear 17.9%
Front Brake indicates slight fluctuation of brake effort · Front Brake pad(s) close to minimum limit · Rear Brake pad(s) close to minimum limit · …
Ask the seller when brakes were last serviced. If they don't know, factor in the cost.
Lighting 11.9%
Rear reflector missing · Drive chain slightly loose · Rear Rear reflector missing · …
Usually cheap to fix. Worth confirming all lights work before collecting.
Suspension & steering 4.8%
Steering headbearing slightly stiff or notchy
Harder to spot without a ramp — this is a good reason to book a pre-purchase inspection.
Other issues 3.6%
Drive chain worn but not considered excessive · Registration plate does not conform to the specified requirements

Data covers a 3-year window centred on 2021.

See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 117 Triumph Street cars.

UK

Before you buy a 2021 Triumph Street

Based on MOT data from 117 vehicles — here's what to check.

  • 📋 Check the full MOT history. 4.3% 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

Mileage Distribution

Most 2021 Triumph Street 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.

4,207
typical
2,440
low mileage
6,625
high mileage

Half of all 2021 Triumph Street vehicles fall between 2,440 and 6,625 miles.

Is the mileage you're seeing normal?
Under 2,440 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.
2,440–6,625 miles — normal for age. This is where most 2021 Triumph Streets sit.
Over 8,943 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

2
Avg MOT tests per vehicle
0.15
Avg failures per vehicle
0.4
Avg advisories per vehicle
Other model years — Triumph Street: All Street years → Which year to buy? →
2017 2018 2019 2020

Or browse all models: Triumph →

Triumph logo

Compare with another model

See how the 2021 Triumph Street stacks up against a rival.

A solid choice — agree?