Carbonin STANDARD Seat Foam for OEM Subframe Honda CBR 600 RR (2024-2026) FM2550H
02 · Data & docs

The facts.

Technical data
BrandCarbonin
Part numberFM2550H
ComponentSeat foam unit, STANDARD level
For seatH25301AP — OEM subframe
BaseAvio Fibre mounting plate
CoverNeoprene textile, higher grip and durability
EmbroideryCarbonin logo
FitmentHonda CBR 600 RR PC69 (2024-2026)
Road approvalNone supplied — closed-course competition use
DescriptionThe whole story

FM2550H is the middle of the three levels for the OEM-subframe seat, and the one most club-level bikes end up running. The step up from BASIC is entirely in the cover: a higher-grade neoprene textile with more grip and more durability, carrying the Carbonin logo.

Key Features

  • Neoprene textile cover, more grip and longer life than plain neoprene
  • Carbonin logo embroidery
  • Same Avio Fibre plate as the other two levels
  • For the H25301AP seat on the standard Honda subframe
  • The default choice for a bike that races regularly

Why This Is the Common Choice

Club racing is a compromise between what makes a bike faster and what makes a season affordable, and this foam sits at a sensible point on that line. The BASIC unit does the job but wears its grip out within a season of hard use; the PROFESSIONAL unit is built to a rider's measurements and is worth the money once those measurements are known. In between sits a foam that grips properly, survives two seasons, and looks finished on a bike carrying team colours — which is not nothing when a sponsor is looking at photographs.

The Seam Is Where It Fails

Covers rarely wear out in the middle. They fail at the edge, along the seam where the material wraps under the plate, because that is the line a rider's leathers drag across every time they move back onto the seat. Once the stitching there starts to open, the cover lifts at the corner and the rest follows within a few meetings. It is worth a look whenever the tail is off: a seam beginning to fray is a cheap thing to replace at the end of a season and an expensive thing to discover on a Saturday.

Fitting Is Not Just Bolts

A foam that does not sit dead flat on the seat pan will rock a millimetre or two under the rider, and that movement is felt as vagueness rather than as movement. Check the mating face is clean before fitting — a single piece of grit under the plate is enough — and tighten evenly rather than one fastener at a time.

Fitment

For the Honda CBR 600 RR PC69, 2024 to 2026, with the H25301AP seat.

Road Approval

Supplied without approval documentation.

Specifications

  • Brand: Carbonin
  • Part number: FM2550H
  • Component: Seat foam unit, STANDARD level
  • For seat: H25301AP — OEM subframe
  • Base: Avio Fibre mounting plate
  • Cover: Neoprene textile, higher grip and durability
  • Embroidery: Carbonin logo
  • Fitment: Honda CBR 600 RR PC69 (2024-2026)
  • Road approval: None supplied — closed-course competition use
FitmentWhich bikes this fits
  • Honda CBR 600 RR PC69 (2024–2026)
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08 · Paddock

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