Check the seat base and its contact points before choosing rubbers for the 1982 CB650SC. The B-type cushion and genuine Honda setting rubber have different references. Both are individual products, so the order should follow the positions needing service rather than an assumed complete underside kit.
Replace those worn, dried-out seat rubbers under your classic Honda with this Seat Setting Rubber "B", a direct replacement for OEM #77205-286-000. One of...
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Upgrade or restore your classic Honda motorcycle with this Genuine Honda Seat Setting Rubber — precision‑engineered and quality made in Japan. This authentic replacement...
Seat rubber B replaces 77205-286-000, while the genuine Honda setting rubber uses 77204-312-000. Compare the removed cushion and the seat-base attachment before choosing either for an original or changed seat.
Both rubbers list the 1982 Nighthawk, but their identities remain different. Use the old component and the relevant parts information to determine which belongs at the position being repaired. A shared model application does not mean one cushion fits every contact beneath the seat.
Inspect the base while planning the order
Worn supports and a damaged or modified seat base are different conditions. Compare the contact points and attachment before buying replacement rubbers. A custom seat can change those positions even when the motorcycle’s frame and mounting area remain otherwise original.
Seat Setting Rubbers questions
Which selected rubber is genuine Honda?
The setting rubber referencing 77204-312-000 is identified as genuine Honda. The B-type replacement references 77205-286-000; establish the required position before choosing either.
Are these supplied as complete seat-support kits?
Both featured rubbers are sold individually. Count the positions needing each particular part rather than assuming one package renews the entire seat underside.
What should I compare on a custom seat?
Inspect its base and frame-contact arrangement directly. The standard model application cannot establish the cushion shape or quantity required by every aftermarket or modified seat.
Not sure which part you need?
Send your model and year, plus photos of your existing part and any changes to the original setup.