1980 Honda CB650C Custom Front Caliper Rebuild Parts
For the 1980 CB650C front caliper, compare the piston, hydraulic sealing ring and external dust boot separately. The listed piston measures 42.8mm across and 36.5mm long. Verify the fitted caliper before ordering, particularly if an earlier owner changed the front brake.
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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...
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Upgrade or restore your classic Honda motorcycle’s front brake system with this Front Brake Caliper Shaft Boot — a quality replacement designed to help...
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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...
1979 Honda CB650 Motorcycle Parts1979 Honda CB750K Motorcycle Parts1979 Honda CB750L Motorcycle Parts1980 Honda CB650 Motorcycle Parts1980 Honda CB650C Custom Motorcycle Parts1980 Honda CB750C Motorcycle Parts1980 Honda CB750K Motorcycle Parts1981 Honda CB650 Motorcycle Parts1981 Honda CB750K Motorcycle PartsHonda CB Brake & Clutch PartsHonda CB Brake Caliper Rebuild Kits & PistonsHonda CB650 Motorcycle Parts (1979–1982)Honda CB650 Motorcycle Parts by Model & YearHonda CB650C Custom Motorcycle Parts (1980–1981)Honda CB750 DOHC Parts (1979–1982)Honda CB750 Motorcycle Parts by Model & YearHonda CB750C Custom Motorcycle Parts (1980–1982)Honda CB750K Motorcycle Parts (1969–1982)Series 5: CB650 (79-82)
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...
1979 Honda CB650 Motorcycle Parts1979 Honda CB750K Motorcycle Parts1979 Honda CB750L Motorcycle Parts1980 Honda CB650 Motorcycle Parts1980 Honda CB650C Custom Motorcycle Parts1980 Honda CB750C Motorcycle Parts1980 Honda CB750K Motorcycle Parts1981 Honda CB650 Motorcycle Parts1981 Honda CB750K Motorcycle PartsHonda CB Brake & Clutch PartsHonda CB Brake Caliper Rebuild Kits & PistonsHonda CB650 Motorcycle Parts (1979–1982)Honda CB650 Motorcycle Parts by Model & YearHonda CB650C Custom Motorcycle Parts (1980–1981)Honda CB750 DOHC Parts (1979–1982)Honda CB750 Motorcycle Parts by Model & YearHonda CB750C Custom Motorcycle Parts (1980–1982)Honda CB750K Motorcycle Parts (1969–1982)Series 5: CB650 (79-82)
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•...
1980 Honda CB650C Custom · Front Caliper Rebuild Parts Buying guide
Inspect the piston and both sealing functions
The hydraulic ring and rubber dust boot perform different jobs around the piston. They are separate listed products, so a piston order should be checked against the sealing parts required by the actual rebuild.
The selected piston and seals have explicit 1980 CB650C applications. Replacement calipers can change those requirements. Compare the old parts, references and dimensions as a group before committing to a rebuild order.
Assess the complete caliper condition
A replacement piston does not establish that the caliper body is serviceable. Have corrosion, seal grooves and related hardware assessed, then follow the appropriate service procedure. The bleed screw and small rubber bleed cap are separate from the piston dust boot.
Front Caliper Rebuild Parts questions
Is the sealing ring the same as the dust boot?
No. The sealing ring is the hydraulic seal, while the dust boot is a separate rubber component. Match both to the fitted caliper and the parts being renewed.
Does a new piston include the seals?
The piston, sealing ring and dust boot are presented as separate products. Plan the rebuild around those separate entries rather than assuming the piston is a complete caliper kit.
Can I use the 1981 Custom piston without checking?
Use the actual caliper specification. The selected piston explicitly lists the 1980 Custom, so do not extend that claim to another year or a changed caliper without verification.
Not sure which part you need?
Send your model and year, plus photos of your existing part and any changes to the original setup.