BIKERELIABILITY Reg check
League table/ Triumph Street Triple R/vs Honda CB600 Hornet
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Triumph Street Triple R vs Honda CB600 Hornet

The Triumph Street Triple R passes its MOT first time more often than the Honda CB600 Hornet: 87.7% vs 78.6%, a 9.1-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Triumph Street Triple R Honda CB600 Hornet
First-time pass rate 87.7% 78.6%
Outright fail rate 6.0% 12.2%
Vs comparable bikes (age & mileage adjusted) +1.1 pts -4.8 pts
Engine size 675cc 599cc
Rank among all models #1695 of 5428 #3832 of 5428
Median miles at test 10,588 20,837
MOT tests analysed 20,614 26,392
Most common failure lamps and reflectors lighting and signalling

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 Triumph Street Triple R Honda CB600 Hornet
Lights & signalling 2.7% 5.8%
Brakes 1.6% 4.6%
Steering & suspension 1.0% 3.6%
Tyres & wheels 1.2% 3.0%
Structure & body 0.8% 0.9%
Drive system 0.1% 1.2%
Fuel & exhaust 0.1% 0.6%

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 Triumph Street Triple R Honda CB600 Hornet
2018 87.9% 77.8%
2019 87.9% 78.9%
2020 87.5% 78.7%
2021 87.8% 80.2%
2022 85.9% 80.9%
2023 87.0% 77.5%
2024 88.0% 79.9%
2025 89.8% 81.3%

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 Triumph Street Triple R Honda CB600 Hornet
0k-10k miles 91.0% 85.2%
10k-20k miles 86.5% 80.8%
20k-30k miles 82.0% 77.0%
30k-40k miles 78.2% 74.9%
40k-50k miles 77.9% 72.8%
50k-60k miles 85.1% 70.9%

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

Triumph Street Triple R vs Honda CB600 Hornet FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Triumph Street Triple R or the Honda CB600 Hornet?

The Triumph Street Triple R passes its MOT first time more often than the Honda CB600 Hornet: 87.7% vs 78.6%, a 9.1-point lead. Adjusted for age, mileage and test class, the Triumph Street Triple R still comes out ahead: +1.1 points vs comparable bikes for the Triumph Street Triple R, -4.8 for the Honda CB600 Hornet. An MOT checks roadworthiness items, not engine or gearbox internals.

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

Lights & signalling: 2.7% of Triumph Street Triple R MOT tests failed on it, then brakes (1.6%).

What does the Honda CB600 Hornet fail its MOT on most?

Lights & signalling: 5.8% of Honda CB600 Hornet MOT tests failed on it, then brakes (4.6%).

Which holds up better at high mileage, the Triumph Street Triple R or the Honda CB600 Hornet?

At 50k-60k miles the Triumph Street Triple R passes first time more often: 85.1% for the Triumph Street Triple R vs 70.9% for the Honda CB600 Hornet.

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