Data as of: DVSA MOT results to 2025
Royal Enfield Interceptor Int 650 E5 vs Yamaha FZS600
The Royal Enfield Interceptor Int 650 E5 passes its MOT first time more often than the Yamaha FZS600: 92.0% vs 82.6%, a 9.4-point lead.
MOT reliability, side by side
| Metric | Royal Enfield Interceptor Int 650 E5 | Yamaha FZS600 |
|---|---|---|
| First-time pass rate | 92.0% | 82.6% |
| Outright fail rate | 4.0% | 10.6% |
| Vs comparable bikes (age & mileage adjusted) | +2.4 pts | -0.8 pts |
| Engine size | 648cc | 599cc |
| Rank among all models | #470 of 5428 | #3052 of 5428 |
| Median miles at test | 3,562 | 21,612 |
| MOT tests analysed | 1,694 | 136,558 |
| Most common failure | lamps and reflectors | 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 | Royal Enfield Interceptor Int 650 E5 | Yamaha FZS600 |
|---|---|---|
| Brakes | 1.9% | 4.5% |
| Lights & signalling | 1.9% | 3.4% |
| Tyres & wheels | 0.7% | 2.9% |
| Steering & suspension | 0.4% | 2.7% |
| Structure & body | 0.3% | 1.1% |
| Fuel & exhaust | 0% | 1.1% |
| Drive system | 0% | 0.9% |
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 mileage
| Mileage | Royal Enfield Interceptor Int 650 E5 | Yamaha FZS600 |
|---|---|---|
| 0k-10k miles | 92.5% | 89.6% |
| 10k-20k miles | 88.0% | 85.5% |
Bands with fewer than 30 tests for either bike are left out.
Royal Enfield Interceptor Int 650 E5 vs Yamaha FZS600 FAQ
Which is more reliable, the Royal Enfield Interceptor Int 650 E5 or the Yamaha FZS600?
The Royal Enfield Interceptor Int 650 E5 passes its MOT first time more often than the Yamaha FZS600: 92.0% vs 82.6%, a 9.4-point lead. Adjusted for age, mileage and test class, the Royal Enfield Interceptor Int 650 E5 still comes out ahead: +2.4 points vs comparable bikes for the Royal Enfield Interceptor Int 650 E5, -0.8 for the Yamaha FZS600. An MOT checks roadworthiness items, not engine or gearbox internals.
What does the Royal Enfield Interceptor Int 650 E5 fail its MOT on most?
Brakes: 1.9% of Royal Enfield Interceptor Int 650 E5 MOT tests failed on it, then lights & signalling (1.9%).
What does the Yamaha FZS600 fail its MOT on most?
Brakes: 4.5% of Yamaha FZS600 MOT tests failed on it, then lights & signalling (3.4%).
See each bike's full report (trend, mileage curve, failure breakdown and rivals) on its own page.