VintageCB750 Supplying CB Riders Since 2010

About Us Why Us? Reviews Shipping Info Returns Contact Us
Wish Lists
0 My Cart

Your cart is currently empty.

Browse all parts
Total (USD): $0.00
View cart
Menu
Search
Wish
Cart 0
My motorcycle Choose your Honda CB model

Search parts

Searching all Honda CB parts

Example: brake pads or oil filter.

1977 Honda CB550F Fork Seals, Boots & Springs

Select front fork service parts for your 1977 Honda CB550F by checking the forks fitted to the bike. Oil seals, short dust boots and internal oil-lock pieces have separate roles; replacement springs need the CB550F-specific instructions rather than another model’s spacer setup.

Close ×
Your saved bike Choose your Honda CB model

Shop By Category

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

Choose your model and year to see parts listed for your bike.

Honda CB750 CB650 CB550 CB500 fork seals

Honda CB750 / CB650 / CB550 / CB500 Fork Seals

$19.95 USD
27-1007
Replace your fork seals with this Fork Seal Set, 35 x 48 x 10.5 / 11mm. High quality, made in Japan. Key Features• Fork...
Honda CB750 CB650 CB550 CB500 fork seal stopper metal rings (pk 2) 51447-KL4-951

Honda CB750 / CB650 / CB550 / CB500 Fork Seal Stopper Metal Rings (Pk/2) ~ Replaces 51447-KL4-951

$7.95 USD
73-0940
Replace your fork seal stopper metal rings with this Fork Seal Stopper Metal Ring Pk/2, replacing OEM #51447-KL4-951. This is the metal ring above...
Honda CB750 CB550 CB500 CB450 CB400 reflector 33741-340-670

Honda CB Stock Type Reflector ~ Replaces 33741-340-670

$21.46 USD
11-2303
Restore your mid-'70s Honda's stock reflectors with this Stock-Type Screw-On Reflector with a 6mm thread, replacing OEM #33741-340-670. Broad fitment covering the 1972-78 CB750...
Honda CB750 CB550 fork dust boot set

1975-78 Honda CB750 / CB550 Fork Dust Boot Set

$24.95 USD
27-1080
Replace your 35mm fork dust boots with this Fork Seal Dust Boot Set of 2 for 35mm fork tubes.Key Features• Fork dust boot set,...
New
Honda CB750 CB550 CB500 CB400 headlight stay headlight reflector bolt 90120-377-000

Honda CB750 / CB550 / CB500 / CB400 Headlight Stay / Headlight Reflector Bolt ~ Replaces 90120-377-000

$8.95 USD
99-4977
Upgrade or restore your classic Honda motorcycle headlight system with this Headlight Stay / Headlight Reflector Bolt — designed to secure the headlight reflector...
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 CB750A CB550F CB550K Progressive type front fork springs

1974-78 Honda CB750A / CB550F / CB550K Progressive Type Front Fork Springs

$84.95 USD
33-0005
Upgrade your fork performance with this Progressive Type Front Fork Spring Set of 2, including 10" pipe and washers. Progressive springs improve handling and...
Honda CB750 CB650 CB550 front fork damper valve set

Honda CB750 / CB650 / CB550 Front Fork Damper Valve Set

$79.95 USD
27-1886
Upgrade your 35mm rod-style front forks to perform like modern cartridge forks with this Front Fork Damper Valve Set of 2. These tunable valves...
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...
View details
Honda CB900 CB750 CB650 CB550 front fork oil lock piece 51432-371-003

Honda CB900 / CB750 / CB650 / CB550 Front Fork Oil Lock Piece ~ Genuine Honda 51432-371-003

$29.95 USD
99-5318
This genuine Honda front fork oil lock piece fits inside the front fork assembly on the Honda CB models listed below. It works with...
compare

1977 Honda CB550F · Fork seals, boots & internals Buying guide

Check the seal, dust protection and fork internals

The oil seals and dust boots are separate sets. Stopper rings sit above the oil seals; the genuine oil-lock piece sits inside the fork. Match these components to the fitted assembly before completing a rebuild order.

Parts to consider

Honda CB750 / CB650 / CB550 / CB500 Fork Seals 35 mm fork oil seal setJapanese-made seals with stated dimensions of 35 × 48 × 10.5 / 11 mm.View part 1975-78 Honda CB750 / CB550 Fork Dust Boot Set 1977 fork dust boot setTwo short dust boots for 35 mm fork tubes, with exact CB550F 1977 application.View part 1974-78 Honda CB750A / CB550F / CB550K Progressive Type Front Fork Springs Progressive front fork spring setTwo springs; the CB550F application does not use the supplied spacer pipe or washers.View part

Related parts: Two fork oil seal stopper rings · Individual genuine Honda oil-lock piece · Individual fork cap with O-ring

Order the external seal parts by their function

The dust boot set contains two pieces for the 1977 CB550F’s listed 35 mm forks. The oil seals are a different product, and the linked stopper rings come two per pack for the position above the oil seal. Compare the fork assembly and inspect each part during service rather than using one rubber component as a substitute for another.

Check the internal parts and spring instructions

The linked genuine Honda oil-lock piece references 51432-371-003 and is sold individually for the fork interior. Compare the old part and diagram before ordering the required quantity. For the featured spring pair, follow the CB550F application: the supplied pipe and washers are not used on this model; changed forks need separate instructions.

Fork Seals, Boots & Springs FAQs

Can the 1977 dust boots replace earlier long fork gaiters?

These are short dust boots with a specific 1977 CB550F application and 35 mm tube fit. Compare the fitted fork and dust-seal seat. A similar tube diameter does not make a long gaiter or different dust boot design an interchangeable choice.

Should I cut the supplied pipe into spacers for the CB550F springs?

The spring product specifically excludes its supplied spacer pipe and washers from the CB550F application. Use the model-specific product instructions and appropriate service information. If replacement forks have been fitted, confirm their required spring and spacer arrangement separately.

How many of the genuine oil-lock pieces does the fork use?

Honda’s 1977 fork diagram shows two oil-lock pieces, one for each leg. The linked genuine 51432-371-003 product is sold individually. Confirm the fitted assembly and order only the quantity needed for the legs you are servicing.

Not sure which part you need?

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

Ask a fitment question
Parts categories for 1977 Honda CB550F Supersport

Your cart

×