BIKERELIABILITY Reg check
League table/ MV Agusta Brutale/vs Triumph Street Triple
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

MV Agusta Brutale vs Triumph Street Triple

The Triumph Street Triple passes its MOT first time more often than the MV Agusta Brutale: 87.7% vs 86.8%, a 0.9-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric MV Agusta Brutale Triumph Street Triple
First-time pass rate 86.8% 87.7%
Outright fail rate 7.1% 5.9%
Vs comparable bikes (age & mileage adjusted) -1.7 pts +1.3 pts
Engine size 798cc 675cc
Rank among all models #1962 of 5428 #1695 of 5428
Median miles at test 5,396 11,189
MOT tests analysed 3,624 37,699
Most common failure lamps and reflectors brakes

First-time outcomes on normal tests, 2005–2025. "Most common failure" is the component group with the most recorded defects on failed tests. Read pass rates against test counts: a smaller sample is noisier. Source: DVSA anonymised MOT results.

"Vs comparable bikes" is the first-time pass rate minus the rate expected for each bike's own mix of age, mileage and test class, in percentage points: positive means better than comparable bikes. How this works.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component MV Agusta Brutale Triumph Street Triple
Lights & signalling 3.9% 2.6%
Brakes 1.9% 1.6%
Steering & suspension 1.6% 1.2%
Tyres & wheels 1.0% 1.2%
Structure & body 0.9% 0.7%
Drive system 0.1% 0.2%
Fuel & exhaust 0.0% 0.1%

A test that fails on two components counts once in each. Component links go to the bikes most likely to fail on it.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year MV Agusta Brutale Triumph Street Triple
2018 78.0% 87.8%
2019 86.3% 87.9%
2020 92.1% 89.6%
2021 86.3% 87.2%
2022 88.3% 87.3%
2023 86.0% 87.5%
2024 87.0% 88.0%
2025 90.3% 86.4%

Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.

Pass rate by mileage

first-time MOT pass rate by miles on the clock at test
Mileage MV Agusta Brutale Triumph Street Triple
0k-10k miles 87.7% 91.3%
10k-20k miles 84.2% 86.7%
20k-30k miles 72.5% 82.7%

Bands with fewer than 30 tests for either bike are left out.

MV Agusta Brutale vs Triumph Street Triple FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the MV Agusta Brutale or the Triumph Street Triple?

The Triumph Street Triple passes its MOT first time more often than the MV Agusta Brutale: 87.7% vs 86.8%, a 0.9-point lead. Adjusted for age, mileage and test class, the Triumph Street Triple still comes out ahead: -1.7 points vs comparable bikes for the MV Agusta Brutale, +1.3 for the Triumph Street Triple. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the MV Agusta Brutale fail its MOT on most?

Lights & signalling: 3.9% of MV Agusta Brutale MOT tests failed on it, then brakes (1.9%).

What does the Triumph Street Triple fail its MOT on most?

Lights & signalling: 2.6% of Triumph Street Triple MOT tests failed on it, then brakes (1.6%).

Which holds up better at high mileage, the MV Agusta Brutale or the Triumph Street Triple?

At 20k-30k miles the Triumph Street Triple passes first time more often: 72.5% for the MV Agusta Brutale vs 82.7% for the Triumph Street Triple.

See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.