Triumph Street Triple R (2021)
2021 Triumph Street Triple R
CarHunch analysed 141 real MOT records for the 2021 Triumph Street Triple R. This breakdown of actual test outcomes — pass rates, defect profiles, mileage data — isn't published anywhere else.
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.
What to check before buying a 2021 Triumph Street Triple R
Practical pre-purchase checks for this age and model.
- 📋 Check the full MOT history. Look for recurring advisories — slow-building issues like corrosion or brake wear patterns show up years before they become failures. Enter the reg below for a full AI analysis.
- 🔍 Inspect for corrosion in person. Brake pipes, sills, subframes, and chassis legs. Surface rust is normal at this age; structural rust is a serious problem that's expensive to fix and can fail an MOT.
- 🛞 Check tyres and brakes. The most common advisory items at this age. Budget for replacement if they're near the limit — factor this into your offer price.
- 📄 Run an HPI check. The MOT history won't show outstanding finance, insurance write-offs, or stolen status — an HPI check will.
Before you buy a Triumph Street Triple R
MOT history is one piece of the puzzle. These checks can reveal what CarHunch can't.
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Pass Rate by Fuel Type
| Fuel type | Vehicles | Pass rate | Avg failures |
|---|---|---|---|
| Petrol (99%) | 140 | 88.8% | 0.2 |
| Other (1%) | 1 | 100% | 0 |
Mileage Distribution
Most 2021 Triumph Street Triple R vehicles sit in the blue band. If the car you're looking at is outside it, it's either unusually low or high mileage for its age.
Half of all 2021 Triumph Street Triple R vehicles fall between 3,473 and 7,096 miles.
MOT History Averages
Found a specific Triumph Street Triple R?
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