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

Data as of: DVSA MOT results to 2025

Cpi GTR vs Peugeot Speedfight

The Peugeot Speedfight passes its MOT first time more often than the Cpi GTR: 65.2% vs 62.2%, a 3.0-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Cpi GTR Peugeot Speedfight
First-time pass rate 62.2% 65.2%
Outright fail rate 30.1% 26.3%
Vs comparable bikes (age & mileage adjusted) -13.1 pts -5.3 pts
Engine size 49cc 49cc
Rank among all models #5138 of 5428 #5008 of 5428
Median miles at test 4,519 13,547
MOT tests analysed 621 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 GTR Peugeot Speedfight
Lights & signalling 19.6% 15.4%
Steering & suspension 17.1% 12.9%
Brakes 6.8% 10.8%
Tyres & wheels 3.5% 4.7%
Structure & body 5.6% 2.3%
Fuel & exhaust 1.0% 2.5%

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 GTR Peugeot Speedfight
2008 46.9% 63.7%
2009 60.9% 62.9%
2010 60.6% 62.0%
2011 60.0% 60.9%
2012 67.1% 61.2%
2013 59.4% 61.2%
2014 54.5% 61.7%
2015 62.5% 64.4%

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 GTR Peugeot Speedfight
0k-10k miles 62.7% 73.1%
10k-20k miles 61.9% 63.3%

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

Cpi GTR vs Peugeot Speedfight FAQ

answers computed from the data above · terms in the glossary

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

The Peugeot Speedfight passes its MOT first time more often than the Cpi GTR: 65.2% vs 62.2%, a 3.0-point lead. Adjusted for age, mileage and test class, the Peugeot Speedfight still comes out ahead: -13.1 points vs comparable bikes for the Cpi GTR, -5.3 for the Peugeot Speedfight. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Cpi GTR fail its MOT on most?

Lights & signalling: 19.6% of Cpi GTR MOT tests failed on it, then steering & suspension (17.1%).

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%).

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