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1981 Honda CB650C Custom Steering Bearings & Hardware

A steering-head service on the 1981 CB650C can involve bearings, stem hardware or both. Compare the fitted arrangement before choosing the tapered kit. The stem nut and washer are separate items, allowing the repair order to follow inspection rather than an assumed all-inclusive package.

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Honda CB750 CB650 CB550 CB450 CB400 steering bearing kit (2)

Honda CB Steering Bearing Kit (2)

$69.95 USD
28-2011
Upgrade your steering bearings with this Steering Bearing Kit. Tapered roller steering bearing conversion kit, superior to OEM quality with 10X the contact area...
Honda CB750 CB650 CB550 CB450 CB400 steering bearing kit

Honda CB Steering Bearing Kit

$69.95 USD
28-2011
Upgrade your steering bearings with this Steering Bearing Kit. Tapered roller steering bearing conversion kit, superior to OEM quality with 10X the contact area...
Honda CB1100 CB1000 CB900 CB750 steering stem washer 90503-425-000

Honda CB Steering Stem Washer ~ Replaces 90503-425-000

$5.80 USD
73-1127
Complete your steering assembly with this OEM-spec Steering Stem Washer, engineered for secure and precise fitment. A vital component when servicing or rebuilding your...
Honda CB1100 CB1000 CB900 CB750 CB700 steering stem nut 90304-425-000

Honda CB Steering Stem Nut ~ Replaces 90304-425-000

$8.95 USD
73-1128
Ensure your front end stays tight and aligned with this high-quality Steering Stem Nut. Designed to match the factory OEM specifications, this nut is...
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1981 Honda CB650C Custom · Steering Bearings & Hardware Buying guide

Decide on bearings and stem hardware independently

The tapered kit supplies upper and lower bearing races for its listed application. The nut references 90304-425-000 and the washer 90503-425-000; identify worn or missing hardware separately from the bearing replacement.

Parts to consider

Honda CB Steering Bearing Kit Tapered steering bearing kitJapanese-made tapered-roller conversion kit supplying upper and lower bearings with matching races for one steering head.View part Honda CB Steering Stem Nut ~ Replaces 90304-425-000 Steering stem nutIndividual stem nut replacing reference 90304-425-000. Washer sold separately.View part Honda CB Steering Stem Washer ~ Replaces 90503-425-000 Steering stem washerIndividual washer replacing reference 90503-425-000; the stem nut is a separate part.View part

Separate the bearing package from the fasteners

The upper and lower tapered bearing races belong to the steering kit. The stem nut and washer have their own entries and are sold individually. Inspect all these parts before ordering so replacing bearings does not overlook damaged or missing fastening hardware.

Use the correct adjustment procedure

Part references identify what can be purchased, but do not specify the steering adjustment. Follow the appropriate service information and supplied bearing instructions. A changed stem or complete front-end conversion requires its own dimensional and compatibility checks before selecting the kit.

Steering Bearings & Hardware questions

Does tightening the upper stem nut set the bearing adjustment?

The stem-nut guidance calls for setting bearing preload by the correct service procedure first, then fitting the correct washer and tightening the upper nut without disturbing that adjustment. Check for smooth steering with no notchiness, binding or play afterward; extra top-nut tightening is not a substitute for diagnosis.

Can an ordinary washer substitute if its hole fits the stem?

The specified washer’s thickness and seating surface affect the upper hardware’s clamping. Compare the original arrangement and reference 90503-425-000 rather than choosing by hole diameter alone. The matching nut and washer are separately supplied, so inspect both during steering service.

How should I choose after a steering-stem swap?

Identify the actual stem, bearings and frame arrangement before ordering. A standard CB650C application does not verify the dimensions of every custom front-end combination.

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Send your model and year, plus photos of your existing part and any changes to the original setup.

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