Description
| Valve Angle | |
| Intake valve | 24mm |
| Exhaust valve | 27mm |
| intake vol | |
| Exhaust vol | |
| Chamber vol | |
| Peak Int Flow | |
| bare | |
| assm | |
| Notes | +1mm intake and +2.5mm exhaust, copper alloy seats |
| chamber softening and "power adder" exhaust port available on all heads |
Yamaha RX1
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