Data as of: DVSA MOT results to 2025
Norton 16H vs Kawasaki ZX-6R
The Norton 16H passes its MOT first time more often than the Kawasaki ZX-6R: 93.3% vs 78.1%, a 15.2-point lead.
MOT reliability, side by side
| Metric | Norton 16H | Kawasaki ZX-6R |
|---|---|---|
| First-time pass rate | 93.3% | 78.1% |
| Outright fail rate | 2.0% | 14.0% |
| Engine size | 498cc | 599cc |
| Rank among all models | #252 of 5428 | #3895 of 5428 |
| Median miles at test | 7,073 | 19,446 |
| MOT tests analysed | 688 | 173,956 |
| Most common failure | steering and suspension | 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.
What fails, side by side
| Component | Norton 16H | Kawasaki ZX-6R |
|---|---|---|
| Brakes | 1.0% | 5.2% |
| Lights & signalling | 0.1% | 6.1% |
| Steering & suspension | 0.9% | 4.6% |
| Tyres & wheels | 0.3% | 3.6% |
| Structure & body | 0.4% | 1.2% |
| Drive system | 0% | 1.0% |
| Fuel & exhaust | 0% | 0.8% |
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 | Norton 16H | Kawasaki ZX-6R |
|---|---|---|
| 2006 | 93.2% | 82.8% |
| 2007 | 98.8% | 81.0% |
| 2008 | 95.6% | 78.4% |
| 2009 | 94.3% | 76.6% |
| 2010 | 90.6% | 76.3% |
| 2011 | 94.2% | 76.6% |
| 2012 | 91.5% | 75.4% |
Each year mixes bikes of different ages, so a fleet that is getting older tends to slip.
Pass rate by mileage
| Mileage | Norton 16H | Kawasaki ZX-6R |
|---|---|---|
| 0k-10k miles | 90.7% | 86.1% |
| 10k-20k miles | 96.0% | 80.6% |
| 20k-30k miles | 95.7% | 75.4% |
| 30k-40k miles | 97.1% | 71.8% |
Bands with fewer than 30 tests for either bike are left out.
Norton 16H vs Kawasaki ZX-6R FAQ
Which is more reliable, the Norton 16H or the Kawasaki ZX-6R?
The Norton 16H passes its MOT first time more often than the Kawasaki ZX-6R: 93.3% vs 78.1%, a 15.2-point lead. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Norton 16H fail its MOT on most?
Brakes: 1.0% of Norton 16H MOT tests failed on it, then steering & suspension (0.9%).
What does the Kawasaki ZX-6R fail its MOT on most?
Lights & signalling: 6.1% of Kawasaki ZX-6R MOT tests failed on it, then brakes (5.2%).
Which holds up better at high mileage, the Norton 16H or the Kawasaki ZX-6R?
At 30k-40k miles the Norton 16H passes first time more often: 97.1% for the Norton 16H vs 71.8% for the Kawasaki ZX-6R.
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.