BIKERELIABILITY Reg check
League table/ Cpi Oliver/vs Peugeot Speedfight
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Cpi Oliver vs Peugeot Speedfight

The Peugeot Speedfight passes its MOT first time more often than the Cpi Oliver: 65.2% vs 60.2%, a 5.0-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Cpi Oliver Peugeot Speedfight
First-time pass rate 60.2% 65.2%
Outright fail rate 29.3% 26.3%
Vs comparable bikes (age & mileage adjusted) -13.7 pts -5.3 pts
Engine size 49cc 49cc
Rank among all models #5206 of 5428 #5008 of 5428
Median miles at test 6,058 13,547
MOT tests analysed 1,135 83,728
Most common failure lighting and signalling 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.

What fails, side by side

share of each bike's MOT tests that failed on the component · lower is better
Component Cpi Oliver Peugeot Speedfight
Lights & signalling 15.2% 15.4%
Steering & suspension 13.0% 12.9%
Brakes 12.5% 10.8%
Tyres & wheels 7.5% 4.7%
Fuel & exhaust 4.1% 2.5%
Structure & body 2.7% 2.3%

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 Cpi Oliver Peugeot Speedfight
2009 52.1% 62.9%
2010 59.5% 62.0%
2011 57.9% 60.9%
2012 63.1% 61.2%
2013 68.2% 61.2%
2014 57.3% 61.7%
2015 57.4% 64.4%
2016 67.6% 63.0%

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 Cpi Oliver Peugeot Speedfight
0k-10k miles 61.5% 73.1%
10k-20k miles 56.9% 63.3%
20k-30k miles 47.2% 58.2%

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

Cpi Oliver vs Peugeot Speedfight FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Cpi Oliver or the Peugeot Speedfight?

The Peugeot Speedfight passes its MOT first time more often than the Cpi Oliver: 65.2% vs 60.2%, a 5.0-point lead. Adjusted for age, mileage and test class, the Peugeot Speedfight still comes out ahead: -13.7 points vs comparable bikes for the Cpi Oliver, -5.3 for the Peugeot Speedfight. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Cpi Oliver fail its MOT on most?

Lights & signalling: 15.2% of Cpi Oliver MOT tests failed on it, then steering & suspension (13.0%).

What does the Peugeot Speedfight fail its MOT on most?

Lights & signalling: 15.4% of Peugeot Speedfight MOT tests failed on it, then steering & suspension (12.9%).

Which holds up better at high mileage, the Cpi Oliver or the Peugeot Speedfight?

At 20k-30k miles the Peugeot Speedfight passes first time more often: 47.2% for the Cpi Oliver vs 58.2% for the Peugeot Speedfight.

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