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1980 Honda CB650 Front Caliper Repair Parts

Front-caliper repair parts for the 1980 CB650 are supplied as separate components. Identify the piston, hydraulic sealing ring, piston dust boot and shaft boot before ordering. A swapped caliper needs its own match, even when the frame is still the original model.

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Currently viewing Brake Caliper Rebuild Kits, Caliper Pistons, Bleed Screws

Honda motorcycle parts

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Honda CB900 CB750 CB650 front caliper piston sealing ring 45215-533-004

Honda CB900 / CB750 / CB650 Front Caliper Piston Sealing Ring ~ Replaces 45215-533-004

$5.80 USD
29-0529
Replace your front caliper piston sealing ring with this Front Brake Caliper Piston Sealing Ring, replacing OEM #45215-533-004.Key Features• Front brake caliper piston sealing...
Honda CB1100 CB1000 caliper bleed cap (pk 10) 45108-425-003

Honda CB Caliper Bleed Screw Rubber Cap (Pk/10) ~ Replaces 45108-425-003

$11.95 USD
29-0500
Stock up on caliper bleed screw rubber caps with this Brake Caliper Bleed Screw Rubber Cap 10-pack. Universal type for series 1, 3, 4,...
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Honda CB750 CB650 CB400 front brake caliper shaft boot 45133-425-003

Honda CB750 / CB650 / CB400 Front Brake Caliper Shaft Boot ~ Replaces 45133-425-003

$4.95 USD
99-4951
Upgrade or restore your classic Honda motorcycle’s front brake system with this Front Brake Caliper Shaft Boot — a quality replacement designed to help...
Honda CB750 CB650 CB450 CB400 front caliper bleed screw 45224-413-003

Honda CB750 / CB650 / CB450 / CB400 Front Caliper Bleed Screw ~ Replaces 45224-413-003

$8.95 USD
73-0995
Replace your front caliper bleed screw with this Front Brake Caliper Bleed Screw, replacing OEM #45224-413-003.Key Features• Front brake caliper bleed screw• Replaces OEM...
Honda CB750 CB650 front caliper piston boot 45109-425-003

1979-81 Honda CB750 / CB650 Front Caliper Piston Boot ~ Replaces 45109-425-003

$15.95 USD
73-1041
Replace your front caliper piston dust boot with this Front Brake Caliper Piston Rubber Dust Boot, replacing OEM #45109-425-003.Key Features• Front brake caliper piston...
Honda CB750 CB650 front caliper piston 45107-425-003

1979-81 Honda CB750 / CB650 Front Caliper Piston ~ Replaces 45107-425-003

$59.95 USD
29-0532
Replace your DOHC CB750 or CB650 front caliper piston with this Front Brake Caliper Piston, 42.8mm diameter x 36.5mm length, replacing OEM #45107-425-003.Key Features•...
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1980 Honda CB650 · Front Caliper Repair Parts Buying guide

Identify which caliper surface or seal needs renewal

The piston and its pressure seal are different parts from protective boots. Inspect the actual caliper and compare dimensions so a similar-looking rubber piece is not used to represent another position.

Parts to consider

1979-81 Honda CB750 / CB650 Front Caliper Piston ~ Replaces 45107-425-003 Front caliper piston42.8mm diameter × 36.5mm long; replaces reference 45107-425-003.View part Honda CB900 / CB750 / CB650 Front Caliper Piston Sealing Ring ~ Replaces 45215-533-004 Caliper piston sealing ringFront-caliper sealing ring; reference 45215-533-004.View part 1979-81 Honda CB750 / CB650 Front Caliper Piston Boot ~ Replaces 45109-425-003 Caliper piston dust bootFront piston rubber dust boot; reference 45109-425-003.View part

Related parts: Caliper shaft boot · Front bleed screw

Check the piston and bore before purchase

The piston replaces reference 45107-425-003. Have the bore and piston condition assessed before deciding on a rebuild. The sealing ring must be matched to that same installed caliper.

Distinguish shaft protection from piston sealing

The linked shaft boot replaces 45133-425-003 and is sold individually. It belongs to a different caliper location from the piston boot. The bleed screw is another separate component; inspect its seat and threads rather than assuming it comes with a piston order.

Ordering questions

Does the piston include both rubber components?

The sealing ring and piston dust boot have separate listings, while the piston description does not itemize included seals. Confirm the supplied contents and use the caliper inspection to decide which parts to order.

What dimensions identify the replacement piston?

The stated size is 42.8mm diameter by 36.5mm length. Compare the old piston and caliper identity before ordering, especially after a front-end or brake conversion.

Is the shaft boot supplied in a pair?

The linked shaft boot is sold individually. Count the required locations separately and match its reference, rather than inferring a package quantity from a different boot listing.

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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