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

Data as of: DVSA MOT results to 2025

Um Renegade Sport S 125 vs Gilera Runner

The Gilera Runner passes its MOT first time more often than the Um Renegade Sport S 125: 70.8% vs 66.7%, a 4.1-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Um Renegade Sport S 125 Gilera Runner
First-time pass rate 66.7% 70.8%
Outright fail rate 22.6% 21.5%
Vs comparable bikes (age & mileage adjusted) -8.7 pts -0.7 pts
Engine size 125cc 124cc
Median miles at test 5,489 11,381
MOT tests analysed 177 69,850
Most common failure lamps and reflectors lighting and signalling

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 Um Renegade Sport S 125 Gilera Runner
2022 62.3% 80.5%
2023 69.0% 81.3%
2024 73.3% 84.0%

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 Um Renegade Sport S 125 Gilera Runner
0k-10k miles 70.7% 76.2%
10k-20k miles 56.3% 67.5%

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.