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1971 Honda CB450K Fork Gaiters, Caps & Hardware

Check the fork covering and retaining parts on your 1971 CB450K before ordering gaiters, top bolts or rings. Gaiters, backup rings and cover trim are separate purchases. Match each reference and compare the fork fitted before assuming a package supplies every piece needed for service.

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Most orders ship same or next business day Fitment guarantee Listed for your exact model and year? We’ll make it right if it doesn’t fit as described. Mechanic-backed support Ask our team for help choosing the right Honda CB part.
Currently viewing Fork Tubes, Springs, Seals & Boots

Honda motorcycle parts

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Honda CB750 CB550 CB500 CB450 fork gaiters 51611-300-000

Honda CB Stock Type Fork Gaitors ~ Replaces 51611-300-000

$29.95 USD
27-1061
Replace your fork gaitors with this Black Stock Type Fork Gaitors Set of 2, replacing OEM #51611-300-000.Key Features• Stock-type black fork gaitors, set of...
Honda CB750 CB500 CB450 CL450K5 fork cover rubber set 51601-300-000

Honda CB Fork Cover Rubber Set ~ Replaces 51601-300-000

$29.95 USD
73-0836
Replace your fork cover rubbers with this Fork Cover Rubber Set of 2, replacing OEM #51601-300-000.Key Features• Fork cover rubbers• Set of 2• Replaces...
Honda CB750 CB550 front reflector rubber base 33743-341-670

Honda CB Stock Type Front Reflector Rubber Base ~ Replaces 33743-341-670

$8.95 USD
11-2304
Fit the rubber base beneath your stock front reflector with this Stock-Type Front Reflector Rubber Base, replacing OEM #33743-341-670.Key Features• Stock-type front reflector rubber...
Honda CB750 CB450 CB350 CL350K4 fork spacer trim set 51608-300-000

Honda CB Fork Spacer Trim Set ~ Replaces 51608-300-000

$37.95 USD
27-1112
Restore your chrome fork boot tops with this Chrome Front Fork Spacer Trim Set of 2. These are the chrome ribs that cover the...
Honda CB750K CB450K fork seal backup rings (pk 2) 51452-319-010

1970-72 Honda CB750K / CB450K Fork Seal Backup Rings (Pk/2) ~ Replaces 51452-319-010

$9.95 USD
73-1037
Replace your fork seal backup rings with this Fork Seal Backup Rings Pk/2, replacing OEM #51452-319-010. These rings go above the fork seals.Key Features•...
Honda CB750 CB550 CB500 CB450 35mm front fork tube bolt with o-ring 90123-300-000

Honda CB750 / CB550 / CB500 / CB450 35mm Front Fork Tube Bolt with O-Ring ~ Replaces Honda OEM 90123-300-000

$17.95 USD
29-6013
This aftermarket 35mm front fork tube bolt is used as the top cap/bolt on compatible Honda CB 35mm fork tubes. It replaces Honda OEM...
Honda CB750K CB450K fork internal circlip set 94521-50000

1970-72 Honda CB750K / CB450K Fork Internal Circlip Set

$7.95 USD
73-1036
Replace your fork internal circlips with this Fork Internal Circlip (50mm) Set of 2, replacing OEM #94521-50000.Key Features• Fork internal circlips• 50mm• Set of...
Honda CB750 CB550 CB500 CB450 CL450K5 fork gaiters 51611-300-000

Honda CB Fork Gaitors ~ Replaces 51611-300-000

$29.95 USD
27-1089
Replace your fork gaitors with this Black Fork Gaitors Set of 2, replacing OEM #51611-300-000.Note: these are about 1.75" shorter than the stock type...
Universal motorcycle fork cap wrench 35mm

Universal Motorcycle Fork Cap Wrench ~ 35mm

$7.00 USD
35-9113
Fork Cap Wrench ~ 35MM Size for custom or restoration work on classic Honda CB motorcycles.  Key Features Aftermarket part Sold as: Each Fitment...
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1971 Honda CB450K · Fork Tubes, Springs, Seals & Boots Buying guide

Compare fork top, covering and retaining components separately

The single top bolt specifies M28 × 1.5 with an included O-ring. Stock-type gaiters come as two, and backup rings are a separate pack of two above the seals. Cover rubbers, trim and internal circlips have other references and contents.

Parts to consider

Honda CB750 / CB550 / CB500 / CB450 35mm Front Fork Tube Bolt with O-Ring ~ Replaces Honda OEM 90123-300-000 Single fork top bolt with O-ringAftermarket replacement for 90123-300-000, with M28 × 1.5 thread and O-ring included. Sold each; compare fork and required quantity before ordering.View part Honda CB Stock Type Fork Gaitors ~ Replaces 51611-300-000 Two stock-type black gaitersSet of two replacing 51611-300-000. Compare the covering arrangement and fitted fork; the alternative gaiter listing describes a different length.View part 1970-72 Honda CB750K / CB450K Fork Seal Backup Rings (Pk/2) ~ Replaces 51452-319-010 Two fork seal backup ringsPack of two referencing 51452-319-010, described as fitting above the fork seals. These rings do not establish a seal set supplied.View part

Related parts: Two 50mm internal circlips · Two fork cover rubbers · Two chrome fork spacer trims

Keep the separate covering and trim parts identifiable

The cover rubbers reference 51601-300-000, and the chrome trim at the boot tops references 51608-300-000. Each is a separate two-piece set from the gaiters. Compare the components removed before ordering; the shared fork application does not establish that a gaiter purchase includes the trim or cover rubbers.

Read each cap family’s own contents and fit details

The single replacement top bolt is sold each with an O-ring, while the black Joker Machine cap set supplies two with O-rings. Compare each family’s stated application and dimensions. The M28 × 1.5 thread belongs to the single top bolt description and should not be assigned to another family.

CB450K buying questions

Does the common gaiter reference establish identical product length?

Both gaiter listings use 51611-300-000, but the alternative is described as about 1.75 inches shorter than the stock type. Compare required coverage on the fitted fork. The shared reference and two-piece quantity do not establish identical dimensions.

Are the backup rings and internal circlips the same retaining component?

The backup rings replace 51452-319-010 and are described above the seals. The separate 50mm internal circlips replace 94521-50000. Each supplies two pieces; compare the actual component removed rather than treating equal pack counts as proof of interchangeability.

Does a 35mm wrench label verify cap thread or tool engagement?

The wrench description states a 35mm label but does not define its contact geometry. Compare the actual cap engagement and available space before selecting a tool. That label does not establish the cap’s thread or automatically verify a changed fork arrangement.

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