BMW C1 vs Honda CBF125

The BMW C1 passes its MOT first time more often than the Honda CBF125: 77.7% vs 73.3%, a 4.4-point lead.

MOT reliability, side by side

first-time pass rate, outright fail rate and tests analysed · 2005–2025

Metric	BMW C1	Honda CBF125
First-time pass rate	77.7%	73.3%
Outright fail rate	17.8%	16.5%
Vs comparable bikes (age & mileage adjusted)	+6.4 pts	+1.1 pts
Engine size	125cc	125cc
Rank among all models	#3952 of 5428	#4471 of 5428
Median miles at test	14,676	10,974
MOT tests analysed	8,766	84,425
Most common failure	steering and suspension	brakes

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	BMW C1	Honda CBF125
Lights & signalling	7.5%	8.0%
Steering & suspension	8.8%	6.2%
Brakes	7.5%	6.8%
Tyres & wheels	4.3%	3.5%
Structure & body	0.6%	4.1%
Drive system	0%	2.0%
Fuel & exhaust	0.2%	0.1%

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	BMW C1	Honda CBF125
2018	79.8%	72.3%
2019	82.1%	70.4%
2020	87.9%	72.1%
2021	87.0%	72.6%
2022	83.3%	72.5%
2023	85.9%	74.4%
2024	85.3%	77.0%
2025	94.0%	79.0%

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	BMW C1	Honda CBF125
0k-10k miles	86.0%	80.3%
10k-20k miles	76.0%	68.7%
20k-30k miles	71.7%	65.5%
30k-40k miles	74.1%	63.9%
40k-50k miles	69.5%	67.6%
50k-60k miles	66.7%	67.4%

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

BMW C1 vs Honda CBF125 FAQ

answers computed from the data above · terms in the glossary

Which is more reliable, the BMW C1 or the Honda CBF125?

The BMW C1 passes its MOT first time more often than the Honda CBF125: 77.7% vs 73.3%, a 4.4-point lead. Adjusted for age, mileage and test class, the BMW C1 still comes out ahead: +6.4 points vs comparable bikes for the BMW C1, +1.1 for the Honda CBF125. An MOT checks roadworthiness items, not engine or gearbox internals.

What does the BMW C1 fail its MOT on most?

Steering & suspension: 8.8% of BMW C1 MOT tests failed on it, then lights & signalling (7.5%).

What does the Honda CBF125 fail its MOT on most?

Lights & signalling: 8.0% of Honda CBF125 MOT tests failed on it, then brakes (6.8%).

Which holds up better at high mileage, the BMW C1 or the Honda CBF125?

They are level: at 50k-60k miles the BMW C1 passes 66.7% first time and the Honda CBF125 67.4%.

BMW C1 77.7% pass · 8,766 tests HONDA CBF125 73.3% pass · 84.4k tests

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