BIKERELIABILITY Reg check
League table/ Gilera Fuoco 500/vs Suzuki GSF600
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Gilera Fuoco 500 vs Suzuki GSF600

The Gilera Fuoco 500 passes its MOT first time more often than the Suzuki GSF600: 85.6% vs 77.3%, a 8.3-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Gilera Fuoco 500 Suzuki GSF600
First-time pass rate 85.6% 77.3%
Outright fail rate 9.8% 14.2%
Vs comparable bikes (age & mileage adjusted) +0.5 pts -6.1 pts
Engine size 493cc 599cc
Rank among all models #2333 of 5428 #4013 of 5428
Median miles at test 16,401 21,080
MOT tests analysed 1,199 143,023
Most common failure lighting and signalling 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 Gilera Fuoco 500 Suzuki GSF600
Lights & signalling 4.8% 6.7%
Brakes 2.3% 6.1%
Steering & suspension 3.4% 3.6%
Tyres & wheels 3.1% 3.3%
Structure & body 0.4% 1.5%
Fuel & exhaust 0.3% 1.2%
Drive system 0% 1.4%

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 Gilera Fuoco 500 Suzuki GSF600
2017 83.0% 77.0%
2018 89.6% 77.7%
2019 82.5% 76.7%
2020 86.4% 77.8%
2021 86.0% 76.8%
2022 83.3% 78.1%
2023 88.1% 78.2%
2024 86.7% 78.9%

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 Gilera Fuoco 500 Suzuki GSF600
0k-10k miles 90.8% 86.8%
10k-20k miles 87.3% 80.1%
20k-30k miles 81.2% 75.2%
30k-40k miles 80.4% 71.3%
40k-50k miles 80.0% 69.4%

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

Gilera Fuoco 500 vs Suzuki GSF600 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Gilera Fuoco 500 or the Suzuki GSF600?

The Gilera Fuoco 500 passes its MOT first time more often than the Suzuki GSF600: 85.6% vs 77.3%, a 8.3-point lead. Adjusted for age, mileage and test class, the Gilera Fuoco 500 still comes out ahead: +0.5 points vs comparable bikes for the Gilera Fuoco 500, -6.1 for the Suzuki GSF600. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Gilera Fuoco 500 fail its MOT on most?

Lights & signalling: 4.8% of Gilera Fuoco 500 MOT tests failed on it, then steering & suspension (3.4%).

What does the Suzuki GSF600 fail its MOT on most?

Lights & signalling: 6.7% of Suzuki GSF600 MOT tests failed on it, then brakes (6.1%).

Which holds up better at high mileage, the Gilera Fuoco 500 or the Suzuki GSF600?

At 40k-50k miles the Gilera Fuoco 500 passes first time more often: 80.0% for the Gilera Fuoco 500 vs 69.4% for the Suzuki GSF600.

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