BIKERELIABILITY Reg check
League table/ SYM GTS Evo 300/vs Piaggio X9
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

SYM GTS Evo 300 vs Piaggio X9

The SYM GTS Evo 300 passes its MOT first time more often than the Piaggio X9: 87.4% vs 77.0%, a 10.4-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric SYM GTS Evo 300 Piaggio X9
First-time pass rate 87.4% 77.0%
Outright fail rate 10.1% 17.5%
Vs comparable bikes (age & mileage adjusted) +1.3 pts -4.4 pts
Engine size 263cc 244cc
Rank among all models #1787 of 5428 #4065 of 5428
Median miles at test 13,415 12,186
MOT tests analysed 358 21,703
Most common failure brakes steering and suspension

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.

Pass rate by test year

first-time MOT pass rate in each calendar year both bikes were tested
Test year SYM GTS Evo 300 Piaggio X9
2014 85.7% 75.5%
2015 97.6% 76.1%
2016 90.5% 76.3%
2017 83.3% 76.3%
2018 83.9% 78.1%

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 SYM GTS Evo 300 Piaggio X9
0k-10k miles 92.3% 81.4%
10k-20k miles 88.7% 75.8%
20k-30k miles 81.7% 72.4%

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

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