Data as of: DVSA MOT results to 2025
Sachs XTC Supersport vs Honda CBR125R
The Honda CBR125R passes its MOT first time more often than the Sachs XTC Supersport: 66.8% vs 58.4%, a 8.4-point lead.
MOT reliability, side by side
| Metric | Sachs XTC Supersport | Honda CBR125R |
|---|---|---|
| First-time pass rate | 58.4% | 66.8% |
| Outright fail rate | 32.5% | 24.1% |
| Vs comparable bikes (age & mileage adjusted) | -12.6 pts | -4.1 pts |
| Engine size | 124cc | 125cc |
| Rank among all models | #5262 of 5428 | #4916 of 5428 |
| Median miles at test | 13,209 | 12,502 |
| MOT tests analysed | 1,734 | 26,473 |
| Most common failure | lighting and signalling | 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
| Component | Sachs XTC Supersport | Honda CBR125R |
|---|---|---|
| Lights & signalling | 17.2% | 11.0% |
| Steering & suspension | 15.6% | 9.3% |
| Brakes | 13.2% | 10.8% |
| Tyres & wheels | 5.2% | 7.0% |
| Drive system | 7.1% | 4.9% |
| Structure & body | 7.4% | 3.7% |
| Fuel & exhaust | 1.8% | 1.5% |
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
| Test year | Sachs XTC Supersport | Honda CBR125R |
|---|---|---|
| 2011 | 50.5% | 67.8% |
| 2012 | 52.6% | 65.9% |
| 2013 | 56.7% | 63.9% |
| 2014 | 61.9% | 65.6% |
| 2015 | 60.0% | 66.7% |
| 2016 | 58.0% | 65.8% |
| 2017 | 54.4% | 64.3% |
| 2018 | 59.4% | 63.9% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Sachs XTC Supersport | Honda CBR125R |
|---|---|---|
| 0k-10k miles | 66.6% | 76.3% |
| 10k-20k miles | 53.3% | 62.9% |
| 20k-30k miles | 51.7% | 58.3% |
| 30k-40k miles | 58.3% | 58.1% |
Bands with fewer than 30 tests for either bike are left out.
Sachs XTC Supersport vs Honda CBR125R FAQ
Which is more reliable, the Sachs XTC Supersport or the Honda CBR125R?
The Honda CBR125R passes its MOT first time more often than the Sachs XTC Supersport: 66.8% vs 58.4%, a 8.4-point lead. Adjusted for age, mileage and test class, the Honda CBR125R still comes out ahead: -12.6 points vs comparable bikes for the Sachs XTC Supersport, -4.1 for the Honda CBR125R. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Sachs XTC Supersport fail its MOT on most?
Lights & signalling: 17.2% of Sachs XTC Supersport MOT tests failed on it, then steering & suspension (15.6%).
What does the Honda CBR125R fail its MOT on most?
Lights & signalling: 11.0% of Honda CBR125R MOT tests failed on it, then brakes (10.8%).
Which holds up better at high mileage, the Sachs XTC Supersport or the Honda CBR125R?
They are level: at 30k-40k miles the Sachs XTC Supersport passes 58.3% first time and the Honda CBR125R 58.1%.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.