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1970 Honda CB750K Fork Tubes, Springs, Seals & Gaiters

Compare early tube pairs, seal sets, progressive springs, gaiters and fork cover rubbers for the 1970 Honda CB750K. Check the fitted upper and lower fork components independently, then review full seal dimensions and set contents before combining items for the assessed fork service.

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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 Progressive type front fork springs

Honda CB750 Progressive Type Front Fork Springs

$89.95 USD
27-1078
Upgrade your CB750 front suspension with this Progressive Type Front Fork Spring Set of 2, including required spacers and washers. Progressive springs improve handling...
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 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 CB750 CB450 CL450K0 CL450K2 CL450K3 fork seals 91255-292-003

Honda CB Fork Seals ~ Replaces 91255-292-003

$22.95 USD
27-1077
Replace your earliest CB750K or CB450 fork seals with this Fork Seal Set, 35 x 46 x 11mm, replacing OEM #91255-292-003. Made in Japan...
Honda CB750K fork tube set

1969-72 Honda CB750K Fork Tube Set

$189.00 USD
73-1081
Replace your fork tubes with this Fork Tube Set of 2, length 585mm (23") with 35mm OD. Before ordering please confirm 23" is the...
Honda CB750K fork cover rubber washer set

1969-76 Honda CB750K Fork Cover Rubber Washer Set

$7.00 USD
73-0936
Replace your CB750K fork cover rubber washers with this Fork Cover Rubber Washer Set of 2. These rubber washers are used between the fork...
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 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...
Honda CB1100 CB1000 CB900 CB750 16mm clutch oil filter rotor lock nut 90231-KCS-651

Honda CB 16mm Clutch / Oil Filter Rotor Lock Nut ~ Genuine Honda 90231-KCS-651 ~ Replaces 90231-KCS-651

$10.95 USD
99-5383
This genuine Honda 16mm lock nut is used on compatible Honda CB clutch basket and oil filter rotor assemblies. It is a small hardware...
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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Honda CB750 CB550 CB500 fork boot collars joker machine

Honda CB750 / CB550 / CB500 Fork Boot Collars ~ Joker Machine

$99.95 USD
12-0072
Get a café look while keeping your OEM fork gaiters with these Joker Machine Custom Fully CNC Machined Fork Boot Collars, set of 2....
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1970 Honda CB750K · Fork Tubes, Springs & Seals Buying guide

Check the upper tube and lower fork requirements separately

The early tube pair states 585mm length and 35mm outside diameter. The seal and spring listings have their own dimensions and contents, so use the complete fitted fork arrangement to choose supporting parts.

Compare useful parts

1969-72 Honda CB750K Fork Tube Set 585mm early fork tube pairTwo 585mm tubes with 35mm outside diameter, listing the 1969–71 CB750K application.View part Honda CB Fork Seals ~ Replaces 91255-292-003 Early fork seal setJapanese-made seal set listed at 35 × 46 × 11mm for the 1969–70 application.View part Honda CB750 Progressive Type Front Fork Springs Progressive fork spring setTwo progressive springs supplied with the stated required spacers and washers.View part

Related parts: Stock-type black gaiter pair · Fork cover mounting rubbers · Fork cover rubber washers

Keep the seal check independent from the tube choice

The 585mm tube listing recommends seal reference 27-1007, but the featured early seal is 27-1077, measuring 35 × 46 × 11mm. Honda’s K1 fork specification instead gives 35 × 48 × 11mm and a larger retaining ring. Match the lower fork and seal seat actually fitted before combining these products; the tube diameter and a 1970 year label do not resolve the difference.

Distinguish a spring set from the surrounding rubber parts

The progressive spring product describes two springs plus spacers and washers. Gaiters, fork cover rubbers and rubber washers are separate listings with different positions. Identify the components called for by an assessment and use the service manual for the required fork service and specifications.

Questions that help you choose

What should I compare before choosing the 585mm tube set?

Its description gives 585mm or 23-inch length, a 35mm outside diameter and a set of two tubes. Compare those measurements with the fitted forks and review the stated early-model application before selecting the pair.

Why should the full seal dimensions be checked separately?

The early seal listed here measures 35 × 46 × 11mm. Honda changed the K1 fork to a 35 × 48 × 11mm seal with a 50mm retaining ring in place of the earlier 47mm ring. Confirm the fitted lower fork, seal seat and retaining arrangement rather than choosing from the shared 35mm tube diameter.

Are both listed gaiter options the same length?

No. The stock-type gaiter pair is listed under 27-1061; the alternative 27-1089 pair is described as about 1.75 inches shorter. Both reference 51611-300-000, so that shared reference alone does not establish identical length or appearance. Compare the fitted cover and gaiter arrangement before choosing.

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