Suzuki Gsxs 1000 S Katana vs Aprilia Tuono

The Suzuki Gsxs 1000 S Katana passes its MOT first time more often than the Aprilia Tuono: 91.3% vs 88.4%, a 2.9-point lead.

MOT reliability, side by side

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

Metric	Suzuki Gsxs 1000 S Katana	Aprilia Tuono
First-time pass rate	91.3%	88.4%
Outright fail rate	2.8%	5.5%
Vs comparable bikes (age & mileage adjusted)	+1.8 pts	+2.3 pts
Engine size	999cc	998cc
Rank among all models	#619 of 5428	#1478 of 5428
Median miles at test	3,993	11,489
MOT tests analysed	749	34,724
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	Suzuki Gsxs 1000 S Katana	Aprilia Tuono
Lights & signalling	1.7%	2.5%
Tyres & wheels	0.8%	1.1%
Brakes	0.1%	1.5%
Steering & suspension	0.4%	1.2%
Structure & body	0.7%	0.6%
Drive system	0%	0.3%
Fuel & exhaust	0%	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	Suzuki Gsxs 1000 S Katana	Aprilia Tuono
2022	89.7%	89.9%
2023	91.6%	90.4%
2024	91.8%	91.3%
2025	91.9%	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	Suzuki Gsxs 1000 S Katana	Aprilia Tuono
0k-10k miles	91.1%	90.7%
10k-20k miles	93.0%	87.2%

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

Suzuki Gsxs 1000 S Katana vs Aprilia Tuono FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Suzuki Gsxs 1000 S Katana or the Aprilia Tuono?

The Suzuki Gsxs 1000 S Katana passes its MOT first time more often than the Aprilia Tuono: 91.3% vs 88.4%, a 2.9-point lead. Adjusted for age, mileage and test class the two are level (+1.8 vs +2.3 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 Suzuki Gsxs 1000 S Katana fail its MOT on most?

Lights & signalling: 1.7% of Suzuki Gsxs 1000 S Katana MOT tests failed on it, then tyres & wheels (0.8%).

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%).

SUZUKI GSXS 1000 S KATANA 91.3% pass · 749 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.