Honda motorcycle parts
Choose your model and year to see parts listed for your bike.
Choose your model and year to see parts listed for your bike.
1982 Honda CB650 · Steering Bearings & Hardware Buying guide
A previous tapered-bearing conversion can change what you find inside the steering head. Compare the fitted bearings and races, then assess the separate stem nut and washer rather than duplicating serviceable hardware.
Steering bearing conversionJapanese-made tapered-roller conversion kit supplying upper and lower bearings with matching races for one steering head.View part
Steering-stem nutNut replacing 90304-425-000, sold individually; the matching washer is separate.View part
Steering-stem washerSteel washer replacing 90503-425-000, sold individually.View part
The featured kit supplies tapered-roller bearings with upper and lower races and is made in Japan. Compare it with any existing conversion rather than assuming all replacement bearings share dimensions. Follow the correct assembly and adjustment information for the fitted setup.
The stem nut replaces 90304-425-000 and the washer replaces 90503-425-000. Both are sold individually, and the nut listing specifically identifies the washer as separate. Inspect threads and mating surfaces before deciding that only the bearing kit needs replacement.
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.
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.
Identify and measure the existing conversion before ordering replacements. The motorcycle year alone cannot establish which aftermarket bearing arrangement is presently fitted.
Send your model and year, plus photos of your existing part and any changes to the original setup.
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