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1971 Honda CB450K Caliper Choices, Brake Lines & Clutch Repairs

Start a 1971 CB450K brake or clutch order by deciding which assembly will be retained. A caliper replacement and an individual service part cover different repairs. Hose sections, hand controls and clutch plates then need their fitting checks and quantity decisions before combining the order.

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Honda motorcycle parts

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Honda CB750 CB550 CB400F front master cylinder kit 45530-377-305

Honda CB Front Master Cylinder Rebuild Kit ~ Replaces 45530-377-305

$37.95 USD
08-0215
Rebuild your early SOHC CB's front master cylinder with this Front Brake Master Cylinder Rebuild Kit, replacing OEM #45530-377-305. Made in Japan. Fits the...
Honda CB750K CB450K front friction pad set 45105-341-305

1969-76 Honda CB750K / CB450K Front Friction Pad Set ~ Replaces 45105-341-305

$29.95 USD
29-3503
Replace your early CB750K or CB450K front brake pads with this Brake Pad Set in Kevlar, front 50 x 54 x 20mm + 50...
Honda CB900 CB750 CB650 caliper piston sealing ring 45108-300-003

Honda CB Caliper Piston Sealing Ring ~ Replaces 45108-300-003

$7.95 USD
29-0527
Replace your front caliper piston sealing ring with this Front Brake Caliper Piston Sealing Ring, replacing OEM #45108-300-003. Also fits the rear brake caliper...
Honda CB1100 CB1000 CB900 CB750 CB500 clutch tab washer 90431-292-000

Honda CB Clutch Tab Washer ~ Replaces 90431-292-000

$7.50 USD
73-0839
Replace your clutch tab washer with this Clutch Washer, 16mm size, replacing OEM #90431-292-000.Key Features• Clutch tab washer• 16mm size• Replaces OEM #90431-292-000• Honda...
Honda CB750 CB550 CB450 CB400F clutch lever 53178-369-700

Honda CB Clutch Lever ~ Replaces 53178-369-700

$9.95 USD
08-0006
Replace a worn silver-with-black-tip clutch lever with this Clutch Lever, a direct replacement for OEM #53178-369-700. Exceptionally broad fitment across the classic Honda lineup,...
Honda CB750 CB550 CB500 master cylinder rubber boot 45522-300-010

Honda CB Master Cylinder Rubber Boot ~ Replaces 45522-300-010

$9.95 USD
33-0003
Replace your master cylinder rubber boot with this Master Cylinder Rubber Boot, which attaches where the brake hose joins the master cylinder. Replaces OEM...
Honda CB750 CB550 CB450 CB400F brake lever 53175-369-003

Honda CB Brake Lever ~ Replaces 53175-369-003

$9.95 USD
08-0007
Match the clutch-side silver-with-black-tip lever with this Brake Lever, a direct replacement for OEM #53175-369-003. Fits the same broad SOHC CB750 and classic Honda...
Honda CB750 CB550 front brake caliper bleed screw rubber cap 45110-300-003

Honda CB Front Brake Caliper Bleed Screw Rubber Cap (Stock Type) ~ Replaces 45110-300-003

$3.95 USD
29-7018
Replace your front caliper bleed screw rubber cap with this Stock Type Front Brake Caliper Bleed Screw Rubber Cap, the same design as the...
Honda CB750 CB550 handlebar clutch lever pivot bolt and nut set 90114-310-000

Honda CB Handlebar Clutch Lever Pivot Bolt & Nut Set ~ Replaces 90114-310-000

$6.95 USD
73-0996
Replace your clutch lever pivot hardware with this Handlebar Clutch Lever Pivot Bolt & Nut Set, used to fasten the clutch lever in place....
Honda CB750K CB450K front caliper bleed screw 45109-300-003

1969-76 Honda CB750K / CB450K Front Caliper Bleed Screw ~ Replaces 45109-300-003

$8.95 USD
29-7017
Replace your front caliper bleed screw with this Front Brake Caliper Bleed Screw, replacing OEM #45109-300-003.Note: we also carry the stock-type bleed screw rubber...
Honda CB750K CB450K front caliper piston 45107-300-003

1969-76 Honda CB750K / CB450K Front Caliper Piston ~ Replaces 45107-300-003

$49.95 USD
29-0526
Replace your early CB750K or CB450K front caliper piston with this Front Brake Caliper Piston, 38.15mm diameter x 34mm length, replacing OEM #45107-300-003.Key Features•...
Honda CB750 CB550 CB500 CB450 front stop hose in.a in. 45125-300-003

Honda CB Front Stop Hose "A" ~ Replaces 45125-300-003

$47.95 USD
51-7205
Replace your front brake hose "A" with this Front Brake Hose "A", connecting the 3-way joint to the front brake pipe. Replaces OEM #45125-300-003....
Honda CB750 CB550 handlebar brake lever pivot bolt and nut set 90114-300-000

Honda CB Handlebar Brake Lever Pivot Bolt & Nut Set ~ Replaces 90114-300-000

$7.95 USD
73-1029
Replace your brake lever pivot hardware with this Brake Lever Pivot Bolt & Nut Set, used to fasten the brake lever in place. Includes...
Honda CB750 CB550 CB500 CB450 front caliper adjuster set 45117-341-700

Honda CB750 / CB550 / CB500 / CB450 Front Caliper Adjuster Set ~ Replaces 45117-341-700

$13.95 USD
29-7016
Restore your front caliper adjuster with this Front Brake Caliper Adjuster Set, including adjusting bolt, spring, washer, and nut. Replaces OEM #45117-341-700 (bolt), #45119-300-020...
Honda CB750 CB550 CB400F master cylinder diaphragm 45520-300-000

Honda CB Master Cylinder Reservoir Diaphragm ~ Replaces 45520-300-000

$10.95 USD
08-0282
Replace a hardened or torn master cylinder diaphragm with this Master Cylinder Reservoir Diaphragm, replacing OEM #45520-300-000. Exceptional range of applications, fits FRONT master...
Honda CB750 CB700 CB500 CB450 CL450K0 steel clutch plate 22321-MG8-000

Honda CB Steel Clutch Plate ~ Replaces 22321-MG8-000

$11.95 USD
39-1409
Replace your SOHC CB750, CB700SC Nighthawk, CB500T, or CB450/CL450 steel clutch plate with this Steel Clutch Drive Plate, replacing OEM #22321-MG8-000 / #22321-283-000.Order the...
Honda CB750 CB650 CB550 CB500 brake rod spring 95014-73100

Honda CB750/CB650/CB550/CB500 Brake Rod Spring

$2.95 USD
29-7006
Replace your brake rod spring with this Brake Rod Spring, replacing OEM #95014-73100. Exceptionally broad fitment across the SOHC and DOHC CB750 lineup, CB650...
Honda CB750 CB700 CB650 CB550 brake rod joint 95015-32001

Honda CB750/CB700/CB650/CB550 Brake Rod Joint

$3.50 USD
73-0843
Replace your brake rod joint with this Brake Rod / Arm Joint, replacing OEM #95015-32001.Key Features• Brake rod / arm joint• Replaces OEM #95015-32001•...
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Honda CB750 CB550 CB450 gp-style clutch lever 53178-369-700

Honda CB GP-Style Clutch Lever ~ Replaces 53178-369-700

$9.95 USD
08-0080
Bring racetrack-inspired ergonomics to your cockpit with this Custom GP-Style Clutch Lever in silver. Features a more pronounced bend/kickback than the stock lever, for...
Honda CB1000 CB900 master cylinder reservoir cap plastic o-ring 45521-MJ6-006

Honda CB Master Cylinder Reservoir Cap Plastic O-Ring ~ Replaces 45521-MJ6-006

$4.95 USD
29-0062
Replace your master cylinder cap O-ring with this Master Cylinder Reservoir Cap Plastic O-Ring, replacing OEM #45521-MJ6-006.Key Features• Master cylinder reservoir cap O-ring• Plastic•...
Honda CB750 CB700 CB650 CB550 CB500 brake rod joint pin w cotter pin

Honda CB Brake Rod Joint Pin with Cotter Pin

$5.95 USD
73-0844
Replace your brake rod joint pin with this Brake Rod Joint Pin with Cotter Pin, replacing OEM #95015-52000 (joint pin) and #94201-16250 (cotter pin).Key...
Honda CB750 CB700 CB650 CB550 CB500 brake rod adjusting nut 95015-42000

Honda CB Brake Rod Adjusting Nut

$4.50 USD
73-0845
Replace your brake rod adjusting nut with this Brake Rod Adjusting Nut, replacing OEM #95015-42000.Key Features• Brake rod adjusting nut• Replaces OEM #95015-42000• Honda...
Honda CB750 CB550 CB500 CB450 front stop hose in.b in. 45126-300-003

Honda CB Front Stop Hose "B" ~ Replaces 45126-300-003

$47.95 USD
51-7206
Replace your front brake hose "B" with this Front Brake Hose "B", connecting the front brake master cylinder to the 3-way joint. Replaces OEM...
Honda CB750K CB450K front brake caliper assembly 45100-341-003

1969-76 Honda CB750K / CB450K Front Brake Caliper Assembly ~ Replaces Honda OEM 45100-341-003

$139.95 USD
33-0040
Aftermarket front brake caliper assembly for Honda CB750K and CB450K front disc brake service. This complete assembly replaces Honda OEM #45100-341-003 and is a...
Honda CB750 CB550 CB500 CB450 brake hose rubber grommet 45146-300-000

Honda CB Brake Hose Rubber Grommet ~ Replaces 45146-300-000

$4.61 USD
73-0091
Replace your brake hose grommet with this Brake Hose Rubber Grommet, the rubber grommet that attaches to the brake hose, replacing OEM #45146-300-000.Key Features•...
Honda CB750 CB550 CB500 CB450 CB400 brake lever gp style 53175-369-003

Honda CB Brake Lever ~ GP Style ~ Replaces 53175-369-003

$10.95 USD
08-0414
Match your GP-style clutch lever with this Custom GP-Style Brake Lever in silver. Features a more pronounced bend/kickback than stock for that classic race-lever...
Honda CB750K CB450K front caliper bolts (pk 2) 90165-300-023

1969-76 Honda CB750K / CB450K Front Caliper Bolts (Pk/2) ~ Replaces 90165-300-023

$12.95 USD
73-1026
Replace your front caliper bolts with these Front Brake Caliper Bolts Pk/2, replacing OEM #90165-300-023.Key Features• Front brake caliper bolts• Pack of 2• Replaces...
Honda CB1100 CB1000 CB900 master cylinder reservoir cap 45513-341-771

Honda CB Master Cylinder Reservoir Cap ~ Replaces 45513-341-771

$39.95 USD
29-0054
Restore your master cylinder cap with this Master Cylinder Cap with Plastic O-Ring, replacing OEM #45513-341-771. This original style was discontinued long ago by...
Universal Honda-type front master cylinder assembly 13mm

Universal Honda-Type Front Master Cylinder Assembly ~ 13mm

$84.95 USD
08-0262
Upgrade to a universal front master cylinder assembly with this Honda-type unit. Complete with lever, banjo bolt, banjo bolt washers, and brake light switch,...
Honda CB750K CB450K front brake pipe b 45128-300-010

1969-72 Honda CB750K Front Brake Pipe B ~ Replaces 45128-300-010

$14.50 USD
07-9969
Replace a damaged or corroded front brake pipe with this Front Brake Pipe "B", replacing OEM #45128-300-010. Approximately 7 7/8" total length, fitting the...
Honda CB750K CB500T CB450K front stop hose guide 45129-300-000

1969-76 Honda CB750K / CB500T / CB450K Front Stop Hose Guide ~ Replaces 45129-300-000

$8.95 USD
73-0950
Replace your front brake hose guide with this Front Brake Hose Guide, replacing OEM #45129-300-000.Key Features• Front brake hose guide• Replaces OEM #45129-300-000• Honda...
Honda CB750K CB450K front stop hose clip 45145-300-020

1969-72 Honda CB750K / CB450K Front Stop Hose Clip ~ Replaces 45145-300-020

$10.95 USD
73-0885
Replace your front brake hose clip with this Front Brake Hose Clip, replacing OEM #45145-300-020.Key Features• Front brake hose clip• Replaces OEM #45145-300-020• Honda...
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Honda CB750 CB450 front friction disc 45120-392-000

Honda CB750 / CB450 Front Friction Disc ~ Replaces 45120-392-000

$239.00 USD
30-3066
Replace your SOHC CB750 or CB450K front brake rotor with this Front Brake Rotor, replacing OEM #45120-392-000 / #45120-300-040 / #45120-341-000.Key Features• Front brake...
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Honda CB750 CB700 CB650 CB550 brake rod adjuster knob joker machine

Honda CB Brake Rod Adjuster Knob ~ Joker Machine

$29.95 USD
73-1072
Upgrade your brake rod adjuster knob with this Joker Machine Brand Custom Brake Rod Adjuster Knob, replacing OEM #95015-42000.Gives your bike a great custom...
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Honda CB750 CB650 CB550 replacement brake lever for master cylinder

Honda CB Replacement Brake Lever for Master Cylinder 08-0262

$9.95 USD
08-0430
Replace the brake lever on the #08-0262 Master Cylinder Assembly specifically with this Brake Lever. Designed for this particular master cylinder.Key Features• Replacement brake...
Honda CB1100 CB1000 CB900 master cylinder reservoir cap 43513-MJ6-006

Honda CB Master Cylinder Reservoir Cap ~ Replaces 43513-MJ6-006

$23.45 USD
29-0080
Replace your master cylinder reservoir cap with this Master Cylinder Reservoir Cap with Diaphragm, round OEM thread-on type. Cap replaces OEM #43513-MJ6-006, diaphragm replaces...
Honda CB1000 CB500 CB450 CL450K0 clutch friction plate 22201-MA7-000

Honda CB Clutch Friction Plate ~ Replaces 22201-MA7-000

$8.95 USD
39-1046
Replace your clutch friction plates with this Clutch Friction Plate, replacing OEM #22201-MA7-000 / #22201-283-000.Order the number of pieces required for your model.Key Features•...
Magura universal front master cylinder assembly 13mm

Magura Universal Front Master Cylinder Assembly ~ 13mm

$259.00 USD
08-0250
Build a custom front brake setup with this Magura Universal Front Brake Master Cylinder. Features a 13mm piston diameter, 12mm stroke, and a threaded...
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1971 Honda CB450K · Brake & Clutch Buying guide

Decide which assembly stays and which components change

A complete aftermarket caliper names its included components. Separate service listings support retaining a matched caliper or master. The brake-rod joint and hand lever are different repairs again; the clutch plate counts describe pieces used per motorcycle rather than an explicit supplied pack.

Parts to consider

1969-76 Honda CB750K / CB450K Front Brake Caliper Assembly ~ Replaces Honda OEM 45100-341-003 Aftermarket caliper with named contentsAssembly sold each, referencing Honda 45100-341-003. Includes both body halves, pads, piston, seal/ring, piston cap, bleed screw and cap, bolts and clip. Compare the fitted brake and avoid duplicating these listed parts in the order.View part Honda CB Front Stop Hose "A" ~ Replaces 45125-300-003 Hose A: joint to front brake pipe13.75-inch hose referencing Honda 45125-300-003. The stated section connects the three-way joint to the front brake pipe. Compare the hose ends and route against that section of the installation you will retain.View part Honda CB Clutch Friction Plate ~ Replaces 22201-MA7-000 Friction plate with seven-per-bike countReferences Honda 22201-MA7-000 / 22201-283-000. Seven pieces are stated per CB450K application, without an explicit supplied seven-plate package. Confirm order quantity before calculating the pieces needed for your repair.View part

Related parts: Matched master-cylinder service kit · Standard clutch control lever · Separate brake rod connection

Check for overlap within a larger brake repair

The complete caliper includes pads, piston, seal/ring, piston cap, bleed screw and cap, bolts and clip with both body halves. Read that list before ordering those components separately. Inspect the other retained assemblies as their own repair needs; the caliper package does not specify a complete line or master-cylinder replacement.

Keep universal replacements separate from existing service fitment

A universal 13mm master needs comparison with the actual custom hydraulic setup, fittings, switch and mirror arrangement. A model-listed rebuild kit does not establish compatibility with that universal master. For the clutch, check both plate references and supplied quantities before using the seven-friction and six-steel application counts.

Questions to help choose the repair parts

What should I compare before keeping the existing caliper?

Identify the retained caliper and the components requiring service. The separate piston gives dimensions and a reference, the seal has its own reference, and bleed and adjustment parts have individual descriptions. Compare those details before choosing a targeted repair instead of the complete assembly.

Can a hose name identify the correct section without looking at its connections?

Use both the name and described endpoints. Hose A is joint-to-pipe at 13.75 inches; hose B is master-to-joint at 15 inches. Compare the fitted connections and route, especially where previous work changed the hydraulic arrangement.

Does a clutch plate application count define the purchase quantity?

Seven friction and six steel pieces are stated per CB450K, but the descriptions do not expressly identify complete seven- or six-piece packs. Confirm the quantity supplied by each purchase and calculate the order from the repair components required.

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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