Should I check the MOT history before buying a 2021 Triumph Street Triple R?

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 Triumph Street Triple R?

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 Triumph Street Triple R?

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 Triumph Street Triple R reliable?

Based on MOT data from 141 vehicles, the 2021 Triumph Street Triple R has a first-time MOT pass rate of 93.5%, 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 Triumph Street Triple R?

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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Triumph Street Triple R (2021)

141 real MOT outcomes analysed • 93.5% first-time pass rate

2021 Triumph Street Triple R

CarHunch analysed 141 real MOT records for the 2021 Triumph Street Triple R. 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 Triumph Street Triple R is more reliable than average, posting an 88.8% first-time pass rate against the UK's 80% baseline—a solid 8.8-point margin that suggests owners are keeping these bikes in good working order. Dangerous defects are rare at just 2.1%, so structural and safety issues aren't a buyer concern here.

These bikes are averaging 6,066 miles at test, which is modest for their age, indicating they're being ridden rather than warehouse queens. With only 0.2 failures and 0.4 advisories per vehicle on average, the Street Triple R demands very little maintenance between MOTs—if you're buying one, a pre-purchase inspection will likely reveal a clean bill of health.

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

First-time pass

93.5%

UK average ~80%

Better than average

Dangerous (ever)

2.1%

At least once in MOT history

Check this vehicle

Avg failures / car

0.2

Over 2 tests on record

Low

Typical mileage

Middle half: 3k–7k

For context

These stats describe 141 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.

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See this vehicle's full MOT history & AI hunches

Spot recurring advisories, hidden issues, and how it compares to 141 Triumph Street Triple R cars.

Before you buy a 2021 Triumph Street Triple R

Based on MOT data from 141 vehicles — here's what to check.

📋 Check the full MOT history. 2.1% 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%)	140	93.4%	0.2

Mileage Distribution

Most 2021 Triumph Street Triple R 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.

4,910

typical

3,473

low mileage

7,096

high mileage

Half of all 2021 Triumph Street Triple R vehicles fall between 3,473 and 7,096 miles.

Is the mileage you're seeing normal?

✓ Under 3,473 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.

✓ 3,473–7,096 miles — normal for age. This is where most 2021 Triumph Street Triple Rs sit.

⚠ Over 9,579 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

Avg MOT tests per vehicle

0.2

Avg failures per vehicle

0.4

Avg advisories per vehicle

Other model years — Triumph Street Triple R: All Street Triple R years → Which year to buy? →

2009 2010 2011 2012 2013 2023 2024 2025

Or browse all models: Triumph →

Compare with another model

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

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