Carbonin Carbon Seat Unit Battery Tray Kawasaki ZX-10 R/RR (2021-2026) CK22309
02 · Data & docs

The facts.

Technical data
BrandCarbonin
Part numberCK22309
ComponentBattery tray for the race seat unit
MaterialCarbon fibre, prepreg inner skin, autoclave cured
FinishPlane weave, buffed gloss, no clearcoat
Works withCK22300 race seat unit
FitmentKawasaki ZX-10 R / ZX-10 RR (2021-2026)
Road approvalNone supplied — closed-course competition use
DescriptionThe whole story

Strip the standard rear end off a ZX-10R and the battery loses its home along with it. CK22309 gives it one inside the race tail: a carbon tray that carries the battery high and central within the CK22300 seat unit, where a strap can hold it properly and where the cables run short.

Key Features

  • Carries the battery inside the race seat unit after the standard rear subframe tray is removed
  • Carbon moulding with a prepreg inner skin, autoclave cured
  • Locates the mass centrally rather than out at the tail's rear edge
  • Buffed weave finish, no clearcoat
  • Designed as part of the CK22300 tail assembly

Where the Weight Sits

A litre-class battery is a concentrated lump of mass, and where it ends up after a rear-end conversion has more effect on how the bike changes direction than most of the parts that get discussed. Carried far back and high, it lengthens the polar moment and the machine becomes noticeably lazier turning from one side to the other. This tray puts the battery forward within the tail, close to the machine's roll axis, which is the reason to use a purpose-made tray rather than strapping the battery wherever it happens to fit.

Practical Points

Access is the second reason. A battery carried in a defined position can be reached without unbolting the tail, which matters when a bike is charged between sessions or when a flat battery needs swapping in a hurry on the grid. The tray does not include the strap or the battery itself.

Which Battery

Most bikes that get this far have already lost the standard lead-acid unit to a lithium one, and the difference is worth stating: a lithium pack of equivalent cranking capacity weighs a fraction of the original and sits in the tray with room around it. That room is the problem. A battery that can move will chafe its own terminals against the tray, so whatever is fitted needs packing out and strapping down properly rather than simply dropping in. Neither the strap nor the battery is supplied with the tray.

Fitment

For the Kawasaki ZX-10 R and ZX-10 RR from 2021 to 2026, used with the CK22300 race seat unit.

Road Approval

A racing component, supplied without approval documentation.

Specifications

  • Brand: Carbonin
  • Part number: CK22309
  • Component: Battery tray for the race seat unit
  • Material: Carbon fibre, prepreg inner skin, autoclave cured
  • Finish: Plane weave, buffed gloss, no clearcoat
  • Works with: CK22300 race seat unit
  • Fitment: Kawasaki ZX-10 R / ZX-10 RR (2021-2026)
  • Road approval: None supplied — closed-course competition use
FitmentWhich bikes this fits
  • Kawasaki ZX-10 R/RR (2021–2026)
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08 · Paddock

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