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Honda CB750F rear friction disc rotor 43121-422-000
SKU 30-3058 — approved OEM fiche location reference (NIGHT20261026-0044)

1979-80 Honda CB750F Rear Friction Disc Rotor ~ Replaces 43121-422-000

30-3058
$299.95 USD
In stock Usually ships the same or next business day
Check model fitment View fitment
Questions about this part? Contact us 4.8/5 1,331 store reviews

$299.95 USD

Replace your CB750F Supersport rear brake disc rotor with this Rear Brake Disc Rotor, replacing OEM #43121-422-000.

Key Features
• Rear brake disc rotor
• Replaces OEM #43121-422-000

Fitment / Compatibility
• Honda CB750F (1979‑80) Supersport

Part Number: 30-3058

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Check the listed model and year, then read any fitment notes in the description.

Honda motorcycle models and years listed for this part
Make Model Year
Honda CB750F Supersport 1979
Honda CB750F 1980

Free ground shipping over $50

To the USA & Canada. In-stock orders usually ship from our own warehouse the same or next business day.

Estimated ground delivery after your order ships
DestinationDelivery time
USA4–7 business days
Canada2–6 business days

Ground shipping includes tracking, emailed when your order ships. Need it sooner? Express options are available at checkout.

60-day returns on eligible parts

No restocking fees. Eligible parts must be unused, uninstalled, unaltered and complete. The 60-day window starts when your order is delivered.

Electrical parts are excluded from standard returns. Check return eligibility.

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Other shipping options

Canada Post Economy: Available at checkout for select small items. Allow 1–3 weeks for delivery. No tracking or insurance is included.

Outside the USA & Canada: Delivery times vary by destination and shipping method. Buyers are responsible for applicable duties, taxes and import fees. We cannot mark orders as gifts.

Frequently Asked Questions

Which Honda CB750 uses rear brake rotor 30-3058?

It fits the rear disc brake on the 1979 and 1980 Honda CB750F Supersport and replaces Honda OEM 43121-422-000.

How many rear brake rotors are included and required?

One rotor is included, enough for the single rear-disc position on one compatible CB750F.

What should be checked when installing a replacement rear rotor?

Measure rotor thickness and runout to the Honda limits, inspect the hub and mounting bolts, service the caliper and install compatible pads. Torque hardware and bed the pads according to the applicable procedures.

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