Scope of delivery: Reed petal set (consisting of 2x petal A and 2x petal B)
Benefits
- Two matched petal stages: the first opens early, the second provides additional support at wider openings.
- For precise throttle response and smooth power delivery.
- Precision CNC-milled for an accurate fit.
Compatible models
| Model | Year |
|---|---|
| Yamaha RD 500 | 1984 to 1985 |
| Yamaha RZ 500 | 1984 to 1985 |
| Yamaha RZ 250 | 1983 to 1988 |
| Yamaha YT 125 | 1980 to 1985 |
Technical data
| Petal A dimensions | 36 x 31 mm |
| Petal B dimensions | 45 x 38 mm |
| Design | Dual-stage petal system |
| Reference numbers | 4X8-13613-10 |
Scope of delivery
- Reed petal set (consisting of 2x petal A and 2x petal B)
Before you buy
- Check your model and year against the compatibility list.
Installation and care
- Inspect the reed valve body and sealing faces before installation.
- Fit both petal stages completely and in the stated order.
All manufacturer and brand names are used for compatibility identification only and are the property of their respective owners.



