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1981 Honda CB900F Swingarm Bearings & Seals

A swingarm refresh on the 1981 CB900F Supersport can involve the pivot bearings alone or the bearings and shaft together. Compare those packages before buying, then assess the dust caps and locking hardware so the order matches the condition of your assembly.

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Honda CB1100 CB900 CB750 swingarm dust seal cap (set 2) 52144-425-831

Honda CB1100 / CB900 / CB750 Swingarm Dust Seal Cap (Set/2) ~ Replaces 52144-425-831

$26.95 USD
99-4972
Upgrade or restore your classic Honda motorcycle’s swingarm assembly with this Swingarm Dust Seal Cap Set (2 pieces) — designed to replace OEM #52144‑425‑831....
Honda CB1100 CB900 CB750 CB650 swing arm pivot bolt lock nut and washer 90354-425-830

Honda CB1100 / CB900 / CB750 / CB650 Swing Arm Pivot Bolt Lock Nut and Washer ~ Replaces 90354-425-830

$9.95 USD
73-1130
Secure your swingarm with confidence using this high-quality Swing Arm Pivot Bolt Lock Nut and Washer Set. Designed to OEM specifications for a precise...
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Honda CB1100 CB900 CB750 swing arm needle bearing set 2 52108-425-831

Honda CB1100 / CB900 / CB750 Swing Arm Needle Bearing Set/2 ~ Replaces 52108-425-831

$34.95 USD
28-1012
Restore smooth rear suspension movement on your vintage Honda with this Swing Arm Needle Bearing Set (Set of 2). These high-quality bearings are made...
Honda CB900F CB750F swing arm needle bearing conversion kit

1980-82 Honda CB900F / CB750F Swing Arm Needle Bearing Conversion Kit

$69.95 USD
28-1032
Upgrade your DOHC Supersport swingarm with this Swing Arm Needle Bearing Conversion Kit, including needle bearings and a hardened swingarm shaft. Made in Japan.Key...
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1981 Honda CB900F Supersport · Swingarm Bearings & Seals Buying guide

Choose between bearings alone and a shaft kit

The stock CB900F pivot already uses needle bearings. Choose the separate bearing pair or the bearing-and-hardened-shaft kit after inspecting the shaft, bearings and thrust surfaces; the catalog word conversion does not mean the F originally used plain bushes.

Parts to consider

Honda CB1100 / CB900 / CB750 Swing Arm Needle Bearing Set/2 ~ Replaces 52108-425-831 Swingarm needle bearing pairTwo bearings, size 24 × 31 × 28, replacing reference 52108-425-831.View part 1980-82 Honda CB900F / CB750F Swing Arm Needle Bearing Conversion Kit Swingarm bearing and shaft kitIncludes needle bearings and a hardened swingarm shaft; made in Japan.View part Honda CB1100 / CB900 / CB750 Swingarm Dust Seal Cap (Set/2) ~ Replaces 52144-425-831 Swingarm dust cap pairTwo dust seal caps replacing reference 52144-425-831.View part

Related parts: Pivot lock nut and washer set

Inspect the bearing surfaces before choosing the package

Honda calls for checking the pivot collar and needle bearings for scoring and wear. A bearing-only repair needs a sound mating surface; a worn shaft or collar requires its own replacement plan. Compare the bearing-and-shaft kit contents before also ordering a separate bearing pair.

Check the surrounding pieces before reassembly

Inspect the dust caps, thrust components and pivot threads along with the bearings. The caps keep contamination away from the pivot but cannot take up bearing play. The linked lock nut and lock washer are separate hardware; use the F service procedure for assembly and adjustment.

Buying questions

Does the needle-bearing kit convert this F from plain bushings?

Honda’s F diagram already shows needle bearings at the swingarm pivot. Treat the kit as a bearing-and-shaft replacement option for this model, then compare its contents with the fitted pivot. A changed swingarm needs its own dimensional check.

When are new bearings alone insufficient?

If their mating shaft or collar is scored, worn or damaged, new bearings cannot restore the correct running surface. Inspect the complete pivot and thrust components before deciding between the bearing pair, the bearing-and-shaft kit and any additional parts.

Will fresh dust caps remove side play in the swingarm?

No. They protect the pivot from dirt and moisture. Locate play in the bearings, collar, thrust components or assembly adjustment and repair that cause. Replace damaged caps as part of the service rather than using them to mask worn load-bearing parts.

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