BIKERELIABILITY Reg check
League table/ Triumph Daytona 675/vs Suzuki GSXR750
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Triumph Daytona 675 vs Suzuki GSXR750

The Triumph Daytona 675 passes its MOT first time more often than the Suzuki GSXR750: 85.8% vs 79.8%, a 6.0-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Triumph Daytona 675 Suzuki GSXR750
First-time pass rate 85.8% 79.8%
Outright fail rate 7.1% 11.4%
Vs comparable bikes (age & mileage adjusted) -0.7 pts -4.4 pts
Engine size 675cc 749cc
Rank among all models #2266 of 5428 #3628 of 5428
Median miles at test 10,672 18,166
MOT tests analysed 5,536 99,227
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 Daytona 675 Suzuki GSXR750
Lights & signalling 3.3% 6.2%
Brakes 1.7% 3.7%
Tyres & wheels 1.6% 2.5%
Steering & suspension 1.1% 2.9%
Structure & body 0.9% 1.0%
Fuel & exhaust 0.4% 0.8%
Drive system 0.1% 0.8%

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 Daytona 675 Suzuki GSXR750
2018 85.6% 82.1%
2019 81.3% 81.6%
2020 85.1% 82.2%
2021 83.8% 81.6%
2022 84.6% 82.2%
2023 86.0% 84.2%
2024 87.4% 84.1%
2025 86.6% 85.2%

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 Daytona 675 Suzuki GSXR750
0k-10k miles 89.6% 85.3%
10k-20k miles 83.9% 81.6%
20k-30k miles 79.2% 77.3%
30k-40k miles 82.2% 74.1%
40k-50k miles 83.8% 74.2%

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

Triumph Daytona 675 vs Suzuki GSXR750 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Triumph Daytona 675 or the Suzuki GSXR750?

The Triumph Daytona 675 passes its MOT first time more often than the Suzuki GSXR750: 85.8% vs 79.8%, a 6.0-point lead. Adjusted for age, mileage and test class, the Triumph Daytona 675 still comes out ahead: -0.7 points vs comparable bikes for the Triumph Daytona 675, -4.4 for the Suzuki GSXR750. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Triumph Daytona 675 fail its MOT on most?

Lights & signalling: 3.3% of Triumph Daytona 675 MOT tests failed on it, then brakes (1.7%).

What does the Suzuki GSXR750 fail its MOT on most?

Lights & signalling: 6.2% of Suzuki GSXR750 MOT tests failed on it, then brakes (3.7%).

Which holds up better at high mileage, the Triumph Daytona 675 or the Suzuki GSXR750?

At 40k-50k miles the Triumph Daytona 675 passes first time more often: 83.8% for the Triumph Daytona 675 vs 74.2% for the Suzuki GSXR750.

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