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

Data as of: DVSA MOT results to 2025

Vespa (douglas) Rally vs Piaggio X9

The Vespa (douglas) Rally passes its MOT first time more often than the Piaggio X9: 86.3% vs 77.0%, a 9.3-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Vespa (douglas) Rally Piaggio X9
First-time pass rate 86.3% 77.0%
Outright fail rate 6.8% 17.5%
Vs comparable bikes (age & mileage adjusted) +1.0 pts -4.4 pts
Engine size 197cc 244cc
Rank among all models #2120 of 5428 #4065 of 5428
Median miles at test 7,547 12,186
MOT tests analysed 263 21,703
Most common failure lighting and signalling 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 mileage

first-time MOT pass rate by miles on the clock at test
Mileage Vespa (douglas) Rally Piaggio X9
0k-10k miles 86.2% 81.4%
10k-20k miles 79.3% 75.8%
20k-30k miles 90.7% 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.