Gilera Fuoco 500 vs Yamaha FZ6

The Gilera Fuoco 500 passes its MOT first time more often than the Yamaha FZ6: 85.6% vs 85.2%, a 0.4-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	Gilera Fuoco 500	Yamaha FZ6
First-time pass rate	85.6%	85.2%
Outright fail rate	9.8%	7.8%
Vs comparable bikes (age & mileage adjusted)	+0.5 pts	+0.3 pts
Engine size	493cc	599cc
Rank among all models	#2333 of 5428	#2445 of 5428
Median miles at test	16,401	15,484
MOT tests analysed	1,199	67,149
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	Yamaha FZ6
Lights & signalling	4.8%	3.1%
Steering & suspension	3.4%	2.4%
Tyres & wheels	3.1%	2.3%
Brakes	2.3%	2.1%
Structure & body	0.4%	0.6%
Drive system	0%	0.5%
Fuel & exhaust	0.3%	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	Gilera Fuoco 500	Yamaha FZ6
2017	83.0%	85.8%
2018	89.6%	84.5%
2019	82.5%	83.4%
2020	86.4%	82.8%
2021	86.0%	82.9%
2022	83.3%	84.0%
2023	88.1%	82.6%
2024	86.7%	83.6%

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	Yamaha FZ6
0k-10k miles	90.8%	91.1%
10k-20k miles	87.3%	86.1%
20k-30k miles	81.2%	81.5%
30k-40k miles	80.4%	78.7%
40k-50k miles	80.0%	77.9%

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

Gilera Fuoco 500 vs Yamaha FZ6 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Gilera Fuoco 500 or the Yamaha FZ6?

The Gilera Fuoco 500 passes its MOT first time more often than the Yamaha FZ6: 85.6% vs 85.2%, a 0.4-point lead. Adjusted for age, mileage and test class the two are level (+0.5 vs +0.3 points against comparable bikes), so the raw gap is mostly down to how old and how used each fleet is. 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 Yamaha FZ6 fail its MOT on most?

Lights & signalling: 3.1% of Yamaha FZ6 MOT tests failed on it, then steering & suspension (2.4%).

Which holds up better at high mileage, the Gilera Fuoco 500 or the Yamaha FZ6?

At 40k-50k miles the Gilera Fuoco 500 passes first time more often: 80.0% for the Gilera Fuoco 500 vs 77.9% for the Yamaha FZ6.

GILERA FUOCO 500 85.6% pass · 1,199 tests YAMAHA FZ6 85.2% pass · 67.1k tests

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