BIKERELIABILITY Reg check
League table/ Aprilia Dorsoduro/vs Yamaha FZS600
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Aprilia Dorsoduro vs Yamaha FZS600

The Aprilia Dorsoduro passes its MOT first time more often than the Yamaha FZS600: 87.1% vs 82.6%, a 4.5-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Aprilia Dorsoduro Yamaha FZS600
First-time pass rate 87.1% 82.6%
Outright fail rate 6.1% 10.6%
Vs comparable bikes (age & mileage adjusted) -0.3 pts -0.8 pts
Engine size 750cc 599cc
Rank among all models #1884 of 5428 #3052 of 5428
Median miles at test 8,245 21,612
MOT tests analysed 5,656 136,558
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 Aprilia Dorsoduro Yamaha FZS600
Brakes 1.5% 4.5%
Lights & signalling 2.5% 3.4%
Tyres & wheels 1.6% 2.9%
Steering & suspension 1.3% 2.7%
Structure & body 0.9% 1.1%
Fuel & exhaust 0.3% 1.1%
Drive system 0.3% 0.9%

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 Aprilia Dorsoduro Yamaha FZS600
2018 91.7% 81.3%
2019 86.3% 83.0%
2020 84.8% 83.6%
2021 85.4% 82.8%
2022 89.1% 83.6%
2023 88.3% 84.2%
2024 88.6% 83.3%
2025 88.5% 84.0%

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 Aprilia Dorsoduro Yamaha FZS600
0k-10k miles 89.2% 89.6%
10k-20k miles 85.2% 85.5%
20k-30k miles 83.4% 81.4%
30k-40k miles 78.7% 78.7%

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

Aprilia Dorsoduro vs Yamaha FZS600 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Aprilia Dorsoduro or the Yamaha FZS600?

The Aprilia Dorsoduro passes its MOT first time more often than the Yamaha FZS600: 87.1% vs 82.6%, a 4.5-point lead. Adjusted for age, mileage and test class the two are level (-0.3 vs -0.8 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 Aprilia Dorsoduro fail its MOT on most?

Lights & signalling: 2.5% of Aprilia Dorsoduro MOT tests failed on it, then tyres & wheels (1.6%).

What does the Yamaha FZS600 fail its MOT on most?

Brakes: 4.5% of Yamaha FZS600 MOT tests failed on it, then lights & signalling (3.4%).

Which holds up better at high mileage, the Aprilia Dorsoduro or the Yamaha FZS600?

They are level: at 30k-40k miles the Aprilia Dorsoduro passes 78.7% first time and the Yamaha FZS600 78.7%.

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