Honda motorcycle parts
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Choose your model and year to see parts listed for your bike.
1971 Honda CB450K · Suspension & Wheel Buying guide
The single fork top bolt specifies M28 × 1.5 and includes its O-ring. Shock families list 321mm, 335mm or custom 290mm lengths. The front Dunlop tire is specified as 3.25-19 54H, with its own application and individual supply.
Individual fork top bolt with O-ring35mm fork application and M28 × 1.5 thread, replacing 90123-300-000. Sold each with O-ring included; compare the actual fork rather than transferring its dimensions to another cap family.View part
321mm chrome stock-design shocksChrome body, cover and springs; 321mm center-of-eye to clevis with five preload positions. Match the installed dimensions, mounts and relevant replacement references.View part
Dunlop Gold Seal F11 front tireGenuine Honda 44711-300-003, size 3.25-19 54H, made in Japan and sold each. Listed for CB450K4 (1971); verify the fitted wheel requirements separately.View part
Related parts: Tapered steering bearing kit · 6302-2RS front wheel bearing · Two bronze pivot thrust bushings
The stock-design set states 321mm center-of-eye to clevis; stock-length alternatives state 335mm eye-to-clevis. The 290mm shorty products are explicitly custom choices. Compare the installed arrangement and exact candidate’s measurements rather than reading those names as proof of one original CB450K shock length or unchanged geometry.
The front tire gives size, rating and individual supply, but does not document every fitted rim or tube requirement. Hub bearings, retainers and the rear seal have separate specifications. Identify the actual wheel arrangement and confirm the contents needed for each purchase instead of treating tire application as hub fitment evidence.
That thread specification is explicitly supplied for the individual replacement top bolt. Compare another product’s own dimensions and application before choosing it. A shared 90123-300-000 replacement reference does not provide the missing thread measurements for every cap family.
The listing identifies this tire as 3.25-19 54H for the 1971 CB450K4. It does not document the motorcycle’s original tire specification or every replacement wheel. Compare the actual wheel and its tire requirements before choosing the product.
The front bearing states two used per front wheel, and the shock nut states two used per motorcycle. Neither clearly defines supplied quantity per order. Confirm each package count rather than assuming those required quantities arrive in one purchase.
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