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.

1981 Honda CB900F Fork Seals & Dust Seals

The useful sealing choices here are fork oil seals and the separate dust seals for the 1981 CB900F Supersport. Identify which sealing parts your repair needs and check the installed fork before ordering, particularly on a bike with a replacement front end.

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 CB1100F CB1000C CB900F CB650SC fork seal set

1981-85 Honda CB1100F / CB1000C / CB900F / CB650SC Fork Seal Set

$23.05 USD
27-1029
Replace your big-bore DOHC fork seals with this Fork Seal Set, 39 x 52 x 11mm. Made in Japan by OEM supplier.Key Features• Fork...
New
Universal motorcycle headlight reflector rubber base 33743-425-600

Universal Motorcycle Headlight Reflector Rubber Base ~ Replaces 33743-425-600

$16.95 USD
99-4979
Upgrade or restore your Honda motorcycle’s headlight assembly with this Headlight Reflector Rubber Base — precision‑designed to replace OEM #33743‑425‑600. This rubber base provides...
Honda CB1100F CB1000C CB900F CB650SC fork dust seal set

1981-85 Honda CB1100F / CB1000C / CB900F / CB650SC Fork Dust Seal Set

$26.23 USD
27-1048
Replace your big-bore DOHC fork dust seals with this Fork Dust Seal Set of 2. OEM-quality parts made in Japan.Key Features• Fork dust seal...
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...
compare

1981 Honda CB900F Supersport · Fork Seals & Dust Seals Buying guide

Choose the oil seal and dust seal separately

The original F fork is a nominal 39mm air-assisted design. The oil seals are listed at 39 × 52 × 11mm, with separate dust seals. Identify the installed fork before using those dimensions after a front-end swap.

Parts to consider

1981-85 Honda CB1100F / CB1000C / CB900F / CB650SC Fork Seal Set 39 × 52 × 11mm fork sealsFork seal set for the 1981–82 CB900F; made in Japan.View part 1981-85 Honda CB1100F / CB1000C / CB900F / CB650SC Fork Dust Seal Set Fork dust seal pairTwo dust seals per pack, listed for the 1981–82 CB900F.View part

Use dimensions to check a changed fork

The oil-seal set is listed for the 1981–82 CB900F and measures 39 × 52 × 11mm. A motorcycle carrying different forks should be checked against that assembly. Use the service information for the installed fork to confirm the sealing parts before ordering.

Find the leak before choosing the repair

Oil at the sliding seal and loss of fork air pressure are different faults. Honda’s F section shows oil and dust seals in the slider and O-rings at the air-hose connections. Inspect tube and bushing condition during seal service. Use the F procedure and a hand-operated pump for the air system; do not use shop compressed air.

Buying questions

Why might new fork seals leak again?

Pitted or scored tubes, worn bushings, contamination or damaged seal seating can spoil a new seal. Inspect those parts rather than replacing the rubber repeatedly. Oil on a tire or brake needs correction before the motorcycle is ridden.

Does a fork that loses air need new oil seals?

Not necessarily. The F air hoses and their connection O-rings are separate from the sliding oil seals. Identify where pressure is escaping and follow the F-specific inspection procedure. Use a hand-operated pump and the specified pressure limits, not a compressor.

Does a 1982 CB900F automatically need an anti-dive seal kit?

The original F fork illustrated in Honda’s 1981 service section, carried forward by the 1982 supplement, is the 39mm air-assisted fork without a TRAC anti-dive unit. If different legs are fitted, identify that fork directly before selecting its seals and service procedure.

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 1981 Honda CB900F

Your cart

×