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1984 Honda CB450SC Nighthawk Suspension Service Parts and Custom Mount Choices

Start a 1984 Honda CB450SC Nighthawk suspension order with the area being serviced. Fork seals, a front-wheel bearing and a rear-wheel seal have specific original applications and different package quantities. The 290 mm shock choices require a separate assessment of custom mounts, travel and clearance.

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Honda CB1100 CB1000 CB900 CB750 CB650 6302-2RS front wheel bearing

Honda CB 6302-2RS Front Wheel Bearing

$14.95 USD
28-6302
Replace your front wheel bearing with this 6302-2RS Front Wheel Bearing with 2 synthetic shields. High quality, made in Japan.2 used per front, order...
Universal chrome shrouded 290mm shock absorber set side detail

Universal Motorcycle Shorty Shock Absorber Set ~ Chrome Shrouded 290mm

$119.95 USD
06-3591
Drop the back end with a clean all-chrome look using this Custom Shorty Shock Absorber Set. Chrome body and shroud with chrome progressive-wound springs,...
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...
Universal black shrouded 290mm shorty motorcycle shock absorber set

Universal Motorcycle Shorty Shock Absorber Set ~ Black Shrouded 290mm

$129.95 USD
06-3590
Get the shortened look with a bit more coverage using this Custom Shorty Shock Absorber Set featuring a black body and shroud with black...
Honda CB450 CB400 CB360 fork seals

Honda CB450 / CB400 / CB360 Fork Seals

$21.95 USD
27-1019
Replace your CB400 or CB360 fork seals with this Fork Seal Set, 33 x 46 x 11mm. Made in Japan by OEM supplier.Key Features•...
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Universal black 290mm eye-to-eye shorty motorcycle shock absorber set

Universal Motorcycle Shorty Shock Absorber Set ~ Black Eye-to-Eye 290mm

$139.95 USD
06-3592
Go shorter with a different mounting configuration using this Custom Shorty Shock Absorber Set. Black body and shroud with black progressive-wound springs, 290mm (11...
Honda CB450SC rear wheel seal 28 x 47.2 x 7

1982-86 Honda CB450SC Rear Wheel Seal ~ 28 x 47.2 x 7

$4.61 USD
27-9111
Replace your CB450SC Nighthawk rear wheel seal with this Rear Wheel Seal, 1 piece, 28 x 47.2 x 7mm. Made in Japan by OEM...
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Universal black 290mm shorty motorcycle shock absorber set

Universal Motorcycle Shorty Shock Absorber Set ~ Black 290mm

$139.95 USD
06-3589
Slam the back end with this Custom Shorty Shock Absorber Set, measuring 290mm (11 3/8") eye-to-clevis, noticeably shorter than stock for custom café, bobber,...
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1984 Honda CB450SC Nighthawk · Front and Rear Service Choices Buying guide

Build the order around the service location and mounting arrangement

One fork-seal set contains two 33 x 46 x 11 mm seals. Front 6302-2RS bearings are individual items, with two used in the front wheel. The rear seal is one 28 x 47.2 x 7 mm piece. Shorty shocks add a conditional custom choice rather than an established factory-height replacement.

Parts to consider

Honda CB450 / CB400 / CB360 Fork Seals Both-leg fork-seal packageTwo 33 x 46 x 11 mm seals, listed for the compatible original CB450SC forks.View part Honda CB 6302-2RS Front Wheel Bearing Individual front-wheel bearingJapanese 6302-2RS bearing; two are used at the front, with each sold separately.View part Universal Motorcycle Shorty Shock Absorber Set ~ Chrome Shrouded 290mm Chrome custom eye-to-clevis shocksTwo 290 mm shocks with 12 mm ID x 21 mm upper bushings; confirm the custom mounting and clearance requirements.View part

Related parts: Matched steering-head bearing and race package · Separate 28 x 47.2 x 7 mm rear-wheel seal · Black custom shocks with eyes at both ends

Keep package counts attached to the specific part

A pair of fork seals and two individually purchased front bearings produce different orders. A steering conversion instead includes the upper and lower bearings with matching races for one head. Use the contents statement for each service location rather than treating every suspension product as a pair.

Resolve custom mounting before selecting shock appearance

The shrouded chrome and black eye-to-clevis designs use a different lower attachment from the black eye-to-eye design. Their shared 290 mm length does not resolve that difference. Compare the actual attachments, bushing measurements and required clearances before narrowing the finish choice.

Common questions

Does a shared 290 mm length make the shock mounting styles interchangeable?

It does not establish interchangeability. The eye-to-clevis choices require a suitable lower clevis and 12 mm ID x 21 mm upper bushing. The eye-to-eye design instead lists 10 mm ID x 21 mm bushings at both ends.

How should I budget fork seals and front bearings for a complete front service?

The fork-seal package already provides two seals for both compatible legs. Front-wheel 6302-2RS bearings are sold individually, and the listing requires two for the front wheel. Budget those two individual bearings separately from the single fork-seal package.

What rear-hub seal specification belongs on my parts list?

The separate CB450SC rear-wheel seal is specified as 28 x 47.2 x 7 mm, with one supplied for one compatible motorcycle. It is a Japanese OEM-supplier part; confirm that application if the rear wheel or hub has been changed.

Not sure which part you need?

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

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