Carbonin Stainless Air Box Holder Yamaha R9 (2024-2026) IN2003Y
02 · Data & docs

The facts.

Technical data
BrandCarbonin
Part numberIN2003Y
ComponentAir box holder
MaterialStainless steel
Works withCY20425 fuel tank cover with side panels
FitmentYamaha R9 (2024-2026)
Road approvalNone supplied — closed-course competition use
DescriptionThe whole story

IN2003Y is the stainless holder that supports the airbox area on the R9 once the standard mountings have gone with the standard bodywork. It sits under the tank cover, out of sight, and carries a part that the rider leans on with their whole upper body.

Key Features

  • Stainless holder for the airbox and tank cover area
  • Restores a proper mounting once the standard bodywork fixings are removed
  • Works with the CY20425 tank cover assembly
  • Positioned under the cover, where corrosion resistance matters more than appearance
  • Ordered separately from the cover

A Mount That Takes Real Load

It is easy to think of a cover mounting as trim hardware. On a race bike it is not. In a full tuck a rider's chest and forearms rest on the tank cover, and under heavy braking a significant fraction of body weight goes through that surface into whatever is holding it. A cover fixed only at its edges flexes; one properly supported underneath does not, and the rider feels the difference as a solid platform rather than a panel that gives slightly every time they load it.

Getting to the Air Filter

Everything in this area has to come apart to reach the filter, and the order matters: tank cover first, then the holder, then the airbox lid. Knowing that in advance is worth something, because the filter is a between-sessions job on a circuit bike rather than a service-interval one, and a rider who has done the sequence once with the manual open does it in a fraction of the time afterwards. Take a photograph of the loom routing before the first disassembly.

About the Photograph

Carbonin photograph this holder installed, looking down at the top of the machine, because the part on its own tells you almost nothing about where it goes. The image shown here is theirs.

Fitment

For the Yamaha R9, 2024 to 2026.

Road Approval

Supplied without approval documentation as part of the racing bodywork.

Specifications

  • Brand: Carbonin
  • Part number: IN2003Y
  • Component: Air box holder
  • Material: Stainless steel
  • Works with: CY20425 fuel tank cover with side panels
  • 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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08 · Paddock

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