1978 Honda CB750F Speedometer & Tachometer Cables

Three actual cables are offered for the Supersport: the speedometer cable and two tachometer lengths. Both tach listings cover 1978, so application alone does not choose between them. Compare the installed cable, its connections and current instrument routing before selecting the stated length.

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Honda CB750 CB650 CB550 CB400 CB350 tach drive plug block off w o-ring

Honda CB Tach Drive Plug Block Off w O-Ring

$22.95 USD

Block off your tach drive cleanly with this Tach Drive Plug (Block Off) with O-ring. This plug is generally used when the tachometer cable...

Honda CB750 CB550 CB500 CB450 CB400 speedometer cable 44830-425-870

Honda CB Speedometer Cable ~ Replaces 44830-425-870

$22.66 USD

Replace your CB speedometer cable with this Speedometer Cable in black, replacing OEM #44830-425-870. End-to-end length 38.5". Made in Japan.Key Features• Speedometer cable, black•...

Honda CB1000 CB900 CB750 CB550 tachometer cable 37260-149-000

Honda CB1000 / CB900 / CB750 / CB550 Tachometer Cable ~ Replaces 37260-149-000

$20.59 USD

Replace your CB tachometer cable with this Tachometer Cable in black, replacing OEM #37260-149-000 (700mm) / #37260-KB7-010 / #37250-149-000. Cable length 29". Made in...

Honda CB1000 CB900 CB750 CB360 CB175 tachometer cable 37260-KB7-010

Honda CB Tachometer Cable ~ Replaces 37260-KB7-010

$15.26 USD

Replace your CB tachometer cable with this Tachometer Cable in black, replacing OEM #37260-KB7-010 / #37260-438-000. Made in Japan. Cable length 24".Note: cable length...

Honda CB1000/CB900/CB750/CB650 Speedo Gear Plug

$43.95 USD

Keep your speedo drive gear clean with this Speedo Gear Plug, 15mm outer diameter, 22mm long.Key Features• Speedo gear plug• 15mm outer diameter, 22mm...

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1978 Honda CB750F · Cables Buying guide

Choosing instrument cables for the fitted layout

Identify the instrument drive and compare the cable’s connections and route before ordering. The two tachometer listings overlap in application and one replacement reference, so their different lengths require a closer check.

Instrument cables to consider

Speedometer cableBlack Japanese-made speedometer cable 51-2304, replacing 44830-425-870.View part

24-inch tachometer cableBlack Japanese-made cable 51-2406, replacing 37260-KB7-010 / 37260-438-000.View part

29-inch tachometer cableBlack Japanese-made cable 51-2401, replacing 37260-149-000 / 37260-KB7-010 / 37250-149-000.View part

Speedometer cable measurement

Cable 51-2304 is explicitly 38.5 inches end-to-end and lists the 1977–78 CB750F. Use that stated measurement convention when comparing it with the cable being replaced.

Speedometer drive accessory

Speedo gear plug 29-0538 is 15 mm outside diameter and 22 mm long. It is offered to keep the original speedometer drive gear clean; compare that separate accessory with the fitted drive when planning a custom instrument layout.

Instrument cable questions

Why do the two tachometer cables share a reference but have different lengths?

Both list 37260-KB7-010, yet 51-2406 states 24 inches and 51-2401 states 29 inches. The latter also prints 700 mm beside another reference. Both list the 1978 F and ask buyers to measure; confirm the required length and measurement method before ordering rather than treating the shared reference as a unique size.

What must match before choosing the tach-drive block-off?

Plug 73-0884 is intended when the mechanical tachometer cable drive is removed, including an electronic-tach conversion. It includes an O-ring and specifies an approximately 15 mm cable diameter, 10.5 mm groove and screw retention. Confirm that interface on the fitted drive before selecting it.

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