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1981 Honda CB650 Steering Bearings & Hardware

Check the steering stem and bearing arrangement on your 1981 Honda CB650 before ordering. The tapered conversion kit, stem nut and washer are separate purchases. Identify any front-end changes and inspect the existing hardware alongside the bearing condition.

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Honda motorcycle parts

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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 CB650 · Steering Bearings & Hardware Buying guide

Plan the bearing conversion and stem hardware

The selected kit includes upper and lower tapered bearing races. The nut and washer have their own references, so compare the fitted stem before adding worn or missing hardware to the order.

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 nutReplacement for reference 90304-425-000; washer is separate.View part Honda CB Steering Stem Washer ~ Replaces 90503-425-000 Steering-stem washerIndividually supplied washer for reference 90503-425-000.View part

Review the complete steering assembly

The tapered-bearing conversion is listed for the standard CB650 application. Confirm the steering stem and frame arrangement before ordering for a modified motorcycle. Use the correct installation and adjustment instructions; the kit description is not a bearing-preload specification.

Keep nut and washer separate

The steering-stem nut replaces 90304-425-000 and the washer replaces 90503-425-000. Both are separately listed. Compare the old hardware and its seating arrangement during inspection rather than assuming new bearings mean every stem fastener must be replaced.

Ordering 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.

Will the kit work with a transplanted front end?

A transplanted stem or fork assembly needs its own fitment check. Compare the stem and bearing arrangement before relying on the original CB650 application.

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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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