BIKERELIABILITY Reg check
League table/ Honda CB250/vs Honda CB250 N
Head-to-head · 2005–2025

Data as of: DVSA MOT results to 2025

Honda CB250 vs Honda CB250 N

The Honda CB250 passes its MOT first time more often than the Honda CB250 N: 79.9% vs 76.2%, a 3.7-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025
Metric Honda CB250 Honda CB250 N
First-time pass rate 79.9% 76.2%
Outright fail rate 11.4% 14.3%
Vs comparable bikes (age & mileage adjusted) -3.7 pts -7.6 pts
Engine size 248cc 248cc
Rank among all models #3603 of 5428 #4162 of 5428
Median miles at test 25,338 27,731
MOT tests analysed 17,302 9,530
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 Honda CB250 Honda CB250 N
Lights & signalling 5.0% 6.6%
Steering & suspension 4.5% 7.0%
Brakes 3.8% 4.4%
Tyres & wheels 2.4% 3.1%
Drive system 1.6% 2.3%
Structure & body 1.3% 1.4%
Fuel & exhaust 0.9% 1.2%

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 Honda CB250 Honda CB250 N
2018 82.2% 80.2%
2019 85.0% 80.3%
2020 82.0% 79.0%
2021 81.8% 81.8%
2022 83.6% 90.9%
2023 84.1% 83.3%
2024 84.5% 92.7%
2025 84.8% 86.5%

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 Honda CB250 Honda CB250 N
0k-10k miles 86.6% 79.9%
10k-20k miles 82.2% 79.3%
20k-30k miles 79.0% 75.4%
30k-40k miles 76.2% 74.6%
40k-50k miles 76.8% 73.8%
50k-60k miles 77.5% 73.9%

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

Honda CB250 vs Honda CB250 N FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the Honda CB250 or the Honda CB250 N?

The Honda CB250 passes its MOT first time more often than the Honda CB250 N: 79.9% vs 76.2%, a 3.7-point lead. Adjusted for age, mileage and test class, the Honda CB250 still comes out ahead: -3.7 points vs comparable bikes for the Honda CB250, -7.6 for the Honda CB250 N. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the Honda CB250 fail its MOT on most?

Lights & signalling: 5.0% of Honda CB250 MOT tests failed on it, then steering & suspension (4.5%).

What does the Honda CB250 N fail its MOT on most?

Steering & suspension: 7.0% of Honda CB250 N MOT tests failed on it, then lights & signalling (6.6%).

Which holds up better at high mileage, the Honda CB250 or the Honda CB250 N?

At 50k-60k miles the Honda CB250 passes first time more often: 77.5% for the Honda CB250 vs 73.9% for the Honda CB250 N.

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