
The facts.
| Brand | Carbonin |
|---|---|
| Part number | AL2505H |
| Component | Race subframe |
| Replaces | Standard Honda rear subframe |
| Matching seat | H25300AP (sold separately) |
| Seat foams | FM2511H, FM2551H, FM2561H |
| Fitment | Honda CBR 600 RR PC69 (2024-2026) |
| Road approval | None supplied — closed-course competition use |
DescriptionThe whole story▼
AL2505H replaces the CBR600RR's rear subframe entirely. It is the most expensive single item in this range and the one that decides which of the two seat families the bike belongs to.
Key Features
- Complete race subframe in place of the standard Honda item
- Carries no pillion provision, seat lock or number plate mount
- Takes the H25300AP race seat and the Carbonin-subframe foams
- Narrower and lighter than the road subframe it replaces
- A structural change — not reversible in an afternoon
What a Road Subframe Has to Carry
A standard rear subframe is designed around obligations a race bike does not have: a pillion and their luggage, a lockable seat, a number plate assembly, indicators, a tail light, and a legal requirement to survive all of that being loaded at once. That is a lot of aluminium, and it sits high and far back — the worst place on a motorcycle for mass. A race subframe carries a rider's weight through a seat and nothing else, so it can be built narrower and lighter, and the mass it saves comes off exactly where saving it does the most for how the bike changes direction.
A Decision, Not an Accessory
This is worth thinking about before ordering rather than after. Fitting it commits the machine: the standard tail, the lighting and the pillion provision are no longer usable, and putting the bike back to road specification means refitting the original subframe. It also fixes which seat and which foams the bike takes from then on — H25300AP and the foams ending in 1. For a machine that will only ever race, it is the right answer. For one that spends summers on track days and gets sold in autumn, the OEM-subframe route with H25301AP is the better-behaved choice.
Fitment
For the Honda CBR 600 RR PC69, 2024 to 2026.
Road Approval
None. A motorcycle with this subframe fitted has no provision for lighting or a number plate.
Specifications
- Brand: Carbonin
- Part number: AL2505H
- Component: Race subframe
- Replaces: Standard Honda rear subframe
- Matching seat: H25300AP (sold separately)
- Seat foams: FM2511H, FM2551H, FM2561H
- 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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