Ducati Monster S2R vs Aprilia Tuono

The Aprilia Tuono passes its MOT first time more often than the Ducati Monster S2R: 88.4% vs 85.4%, a 3.0-point lead.

MOT reliability, side by side

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

Metric	Ducati Monster S2R	Aprilia Tuono
First-time pass rate	85.4%	88.4%
Outright fail rate	7.3%	5.5%
Vs comparable bikes (age & mileage adjusted)	-1.3 pts	+2.3 pts
Engine size	803cc	998cc
Rank among all models	#2385 of 5428	#1478 of 5428
Median miles at test	9,604	11,489
MOT tests analysed	1,974	34,724
Most common failure	brakes	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	Ducati Monster S2R	Aprilia Tuono
Lights & signalling	3.9%	2.5%
Brakes	2.5%	1.5%
Steering & suspension	1.6%	1.2%
Tyres & wheels	1.5%	1.1%
Structure & body	0.6%	0.6%
Drive system	0.7%	0.3%
Fuel & exhaust	0.2%	0.2%

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	Ducati Monster S2R	Aprilia Tuono
2018	80.5%	88.7%
2019	73.3%	89.4%
2020	85.3%	90.5%
2021	84.1%	90.2%
2022	85.7%	89.9%
2023	89.2%	90.4%
2024	85.1%	91.3%
2025	85.9%	90.3%

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	Ducati Monster S2R	Aprilia Tuono
0k-10k miles	88.7%	90.7%
10k-20k miles	82.8%	87.2%
20k-30k miles	79.0%	86.2%
30k-40k miles	85.5%	84.6%

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

Ducati Monster S2R vs Aprilia Tuono FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Ducati Monster S2R or the Aprilia Tuono?

The Aprilia Tuono passes its MOT first time more often than the Ducati Monster S2R: 88.4% vs 85.4%, a 3.0-point lead. Adjusted for age, mileage and test class, the Aprilia Tuono still comes out ahead: -1.3 points vs comparable bikes for the Ducati Monster S2R, +2.3 for the Aprilia Tuono. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Ducati Monster S2R fail its MOT on most?

Lights & signalling: 3.9% of Ducati Monster S2R MOT tests failed on it, then brakes (2.5%).

What does the Aprilia Tuono fail its MOT on most?

Lights & signalling: 2.5% of Aprilia Tuono MOT tests failed on it, then brakes (1.5%).

Which holds up better at high mileage, the Ducati Monster S2R or the Aprilia Tuono?

They are level: at 30k-40k miles the Ducati Monster S2R passes 85.5% first time and the Aprilia Tuono 84.6%.

DUCATI MONSTER S2R 85.4% pass · 1,974 tests APRILIA TUONO 88.4% pass · 34.7k tests

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