BIKERELIABILITY Reg check
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Aprilia Atlantic 500 vs Suzuki GS500

The Aprilia Atlantic 500 passes its MOT first time more often than the Suzuki GS500: 83.9% vs 76.4%, a 7.5-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Aprilia Atlantic 500 Suzuki GS500
First-time pass rate 83.9% 76.4%
Outright fail rate 12.0% 15.0%
Vs comparable bikes (age & mileage adjusted) -2.1 pts -7.1 pts
Engine size 459cc 487cc
Rank among all models #2767 of 5428 #4137 of 5428
Median miles at test 11,421 21,676
MOT tests analysed 1,332 44,924
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 Aprilia Atlantic 500 Suzuki GS500
Brakes 5.7% 6.3%
Steering & suspension 4.6% 6.6%
Lights & signalling 3.0% 5.5%
Tyres & wheels 3.9% 3.4%
Drive system 0% 2.0%
Structure & body 0.2% 1.1%
Fuel & exhaust 0.4% 0.7%

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 Atlantic 500 Suzuki GS500
2016 87.5% 75.8%
2017 81.4% 76.6%
2018 70.8% 75.8%
2019 87.8% 79.4%
2020 82.4% 76.9%
2021 92.9% 78.9%
2022 86.7% 80.6%
2023 73.3% 78.2%

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 Atlantic 500 Suzuki GS500
0k-10k miles 85.3% 86.4%
10k-20k miles 84.1% 78.9%
20k-30k miles 81.3% 74.1%
30k-40k miles 77.3% 71.5%
40k-50k miles 90.9% 68.7%

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

Aprilia Atlantic 500 vs Suzuki GS500 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Aprilia Atlantic 500 or the Suzuki GS500?

The Aprilia Atlantic 500 passes its MOT first time more often than the Suzuki GS500: 83.9% vs 76.4%, a 7.5-point lead. Adjusted for age, mileage and test class, the Aprilia Atlantic 500 still comes out ahead: -2.1 points vs comparable bikes for the Aprilia Atlantic 500, -7.1 for the Suzuki GS500. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Aprilia Atlantic 500 fail its MOT on most?

Brakes: 5.7% of Aprilia Atlantic 500 MOT tests failed on it, then steering & suspension (4.6%).

What does the Suzuki GS500 fail its MOT on most?

Steering & suspension: 6.6% of Suzuki GS500 MOT tests failed on it, then brakes (6.3%).

Which holds up better at high mileage, the Aprilia Atlantic 500 or the Suzuki GS500?

At 40k-50k miles the Aprilia Atlantic 500 passes first time more often: 90.9% for the Aprilia Atlantic 500 vs 68.7% for the Suzuki GS500.

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