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  • 1969-76 Honda CB750 Piston Ring Set ~ 2nd Oversize +0.50mm
Honda CB750 2ND oversize piston ring set +0.50mm 13031-300-024
Corrected parts fiche reference for SKU 05-7002
1969-76 Honda CB750 Piston Ring Set ~ 2nd Oversize +0.50mm — Product
1969-76 Honda CB750 Piston Ring Set ~ 2nd Oversize +0.50mm — Rear
1969-76 Honda CB750 Piston Ring Set ~ 2nd Oversize +0.50mm — Left
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Honda CB750 2ND oversize piston ring set +0.50mm 13031-300-024

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Load image into Gallery viewer, Honda CB750 2ND oversize piston ring set +0.50mm 13031-300-024
Load image into Gallery viewer, Corrected parts fiche reference for SKU 05-7002
Load image into Gallery viewer, 1969-76 Honda CB750 Piston Ring Set ~ 2nd Oversize +0.50mm — Product
Load image into Gallery viewer, 1969-76 Honda CB750 Piston Ring Set ~ 2nd Oversize +0.50mm — Rear
Load image into Gallery viewer, 1969-76 Honda CB750 Piston Ring Set ~ 2nd Oversize +0.50mm — Left

1969-76 Honda CB750 Piston Ring Set ~ 2nd Oversize +0.50mm

05-7002
$27.95 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 1,347 store reviews
Secure checkoutProtected payment
60-day returnsEligible unused parts Free ground shippingUSA & Canada over $50
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1969-76 Honda CB750 Piston Ring Set ~ 2nd Oversize +0.50mm
$27.95 USD
Description

Go with a 0.50mm over-bore refresh using this 2nd Oversize Piston Ring Set (+0.50mm), Japanese made to superior quality and replacing OEM Ref. #13031-300-024. Matched to a 0.50mm oversize bore on the 1969-76 CB750K, 1975 CB750F Supersport, and 1976 CB750F Supersport (engine serial numbers below #2551568, check your serial for 1976F).

Note: this set includes rings for one piston. 4 sets needed to rebuild all pistons.

Key Features
• 2nd oversize (+0.50mm) piston ring set
• Replaces OEM #13031-300-024
• Japanese made, superior quality
• One piston per set (4 sets for full rebuild)
• Honda part name: Ring Set, Piston (Os 0.50) (Riken)
• Interchangeable with Honda 13031-300-013

Fitment / Compatibility
• Honda CB750K (1969‑76)
• CB750F (1975) Supersport
• CB750F (1976) Supersport, engine serial below #2551568

Part Number: 05-7002

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

Make Model Year
Honda CB750K Standard 1969
Honda CB750K 1970
Honda CB750K 1971
Honda CB750K 1972
Honda CB750K 1973
Honda CB750K 1974
Honda CB750K 1975
Honda CB750F Supersport 1975
Honda CB750K 1976
Honda CB750F 1976

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.

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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

How many +0.50 mm ring sets are required for a complete early SOHC CB750 engine?

One Japanese-made ring set replacing Honda OEM 13031-300-024 services one piston. Four sets are required to re-ring all four cylinders.

Which Honda CB750 models use ring set 13031-300-024?

It fits 1969-1976 CB750K, 1975 CB750F, and 1976 CB750F engines with serial numbers below 2551568 when fitted with matching +0.50 mm pistons and bores.

Does the 1976 CB750F engine number matter when ordering oversize rings?

Yes. SKU 05-7002 is for 1976 CB750F engine numbers below 2551568; the later engine group uses a different ring family. Verify the stamped engine number as well as the 0.50 mm oversize before ordering.

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