
The facts.
| Brand | Carbonin |
|---|---|
| Part number | 3DY20064 |
| Component | Air box inlet tube, long |
| Manufacture | 3D printed |
| Range | One of three lengths — long, central 3DY20065, short 3DY20066 |
| Holder | IN2004Y (sold separately) |
| Fitment | Yamaha R9 (2024-2026) |
| Road approval | None supplied — closed-course competition use |
DescriptionThe whole story▼
Carbonin offer the R9's intake ducting in three lengths, and this is the long one. It is also by some distance the most expensive of the three, which tells you it is a larger assembly rather than simply the same tube with more material.
Key Features
- Longest of the three R9 intake tube options
- Built by additive manufacture, allowing a curved duct with a constant internal section
- Feeds the airbox behind the race cowl
- Held by the stainless IN2004Y bracket, ordered separately
- Fitted with the front bodywork off
Intake Length Is a Tuning Choice
The length of an intake tract is not arbitrary. A column of air in a duct has its own resonance, and where that resonance falls in the rev range decides where the engine picks up an extra bit of filling and where it loses some. Longer tracts favour the middle of the range, shorter ones the top. On an 890 triple with a broad spread of torque, that choice interacts with the gearing and the circuit, which is why a manufacturer offers three lengths instead of one.
Which One to Order
We are not going to guess this for you. Which length suits a given build depends on the airbox configuration, the exhaust and how the bike is mapped, and Carbonin do not publish a selection chart. If you are unsure, tell us what the bike is running and we will put the question to Carbonin before the order goes in — the wrong tube is an expensive thing to find out about after delivery.
Fitment
For the Yamaha R9, 2024 to 2026.
Road Approval
Supplied as a competition component without approval documentation.
Specifications
- Brand: Carbonin
- Part number: 3DY20064
- Component: Air box inlet tube, long
- Manufacture: 3D printed
- Range: One of three lengths — long, central 3DY20065, short 3DY20066
- Holder: IN2004Y (sold separately)
- Fitment: Yamaha R9 (2024-2026)
- Road approval: None supplied — closed-course competition use
FitmentWhich bikes this fits▼
- Yamaha R9 (2024–2026)
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