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

Data as of: DVSA MOT results to 2025

Italjet Formula vs Peugeot Speedfight

The Italjet Formula passes its MOT first time more often than the Peugeot Speedfight: 70.5% vs 65.2%, a 5.3-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Italjet Formula Peugeot Speedfight
First-time pass rate 70.5% 65.2%
Outright fail rate 22.3% 26.3%
Vs comparable bikes (age & mileage adjusted) -3.1 pts -5.3 pts
Engine size 49cc 49cc
Rank among all models #4693 of 5428 #5008 of 5428
Median miles at test 8,252 13,547
MOT tests analysed 2,801 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 Italjet Formula Peugeot Speedfight
Lights & signalling 14.4% 15.4%
Steering & suspension 9.9% 12.9%
Brakes 8.8% 10.8%
Tyres & wheels 3.1% 4.7%
Fuel & exhaust 3.2% 2.5%
Structure & body 1.4% 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 Italjet Formula Peugeot Speedfight
2014 75.9% 61.7%
2015 80.0% 64.4%
2016 75.3% 63.0%
2017 78.8% 68.5%
2018 81.6% 69.6%
2020 70.0% 72.0%
2022 71.0% 71.7%
2023 83.3% 71.0%

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 Italjet Formula Peugeot Speedfight
0k-10k miles 74.4% 73.1%
10k-20k miles 63.6% 63.3%
20k-30k miles 70.4% 58.2%

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

Italjet Formula vs Peugeot Speedfight FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Italjet Formula or the Peugeot Speedfight?

The Italjet Formula passes its MOT first time more often than the Peugeot Speedfight: 70.5% vs 65.2%, a 5.3-point lead. Adjusted for age, mileage and test class, the Italjet Formula still comes out ahead: -3.1 points vs comparable bikes for the Italjet Formula, -5.3 for the Peugeot Speedfight. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Italjet Formula fail its MOT on most?

Lights & signalling: 14.4% of Italjet Formula MOT tests failed on it, then steering & suspension (9.9%).

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 Italjet Formula or the Peugeot Speedfight?

At 20k-30k miles the Italjet Formula passes first time more often: 70.4% for the Italjet Formula vs 58.2% for the Peugeot Speedfight.

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