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1978 Honda CB750A Replacement & Custom Speedometers

Choose a complete speedometer for your 1978 Honda CB750A by deciding which speed units and instrument arrangement you want to retain. Stock-style MPH and KPH choices sit alongside smaller custom gauges. Compare the dial photograph, fitted drive and mounting details before making the change.

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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 Tachometer & Speedometer

Honda motorcycle parts

Choose your model and year to see parts listed for your bike.

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Honda CB chrome speedometer and tachometer cover set

Honda CB Chrome Speedometer & Tachometer Cover Set

$44.95 USD
02-2480
Dress up your gauge cluster with this Chrome Speedometer & Tachometer Cover Set. These chrome-plated covers fit over your stock speedo and tach to...
Honda CB750 stock style tachometer side detail

1973-78 Honda CB750 Stock Style Tachometer

$139.95 USD
03-0727
Restore a factory-style look to your CB750's instrument cluster with this Stock Style Tachometer. Face dial reads 0-12000RPM with a 4:1 drive ratio, matching...
Honda CB750 CB550 stock style kph speedometer

1973-78 Honda CB750 / CB550 Stock Style Speedometer KPH

$139.95 USD
03-0728
Give your CB a period-correct speedometer with this Stock Style KPH Speedometer, featuring back illumination and a 0-240KPH face dial. The drive ratio is...
Honda CB all-black deluxe mini custom mph speedometer

Deluxe Mini Custom Speedometer MPH ~ All Black

$119.95 USD
03-0773
Complete your blacked-out cockpit with this All-Black Deluxe Mini Custom MPH Speedometer. A 2.25" unit with an all-black body and face, LED illumination, and...
Honda CB all-black mini custom tachometer with 4:1 drive

Mini Custom Tachometer ~ All Black 4:1 Drive

$69.95 USD
03-0775
Keep things minimal and blacked-out with this All-Black Mini Custom Tachometer. A 2.25" mechanical-drive unit with an all-black body and face plate, LED-type illumination,...
Honda CB mini custom mph speedometer with black face plate

Mini Custom Speedometer MPH ~ Black Face Plate

$69.95 USD
03-0729
Fit a clean mini speedometer without the full deluxe-indicator package using this Mini Custom MPH Speedometer. At 2.25" in a chrome body with a...
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Honda CB micro custom mph speedometer with black face plate

Micro Custom Speedometer MPH ~ Black Face Plate

$69.95 USD
03-0765
Keep things minimal with this Micro Custom MPH Speedometer in chrome with a black face plate. A 1.9" compact unit with LED illumination and...
Honda CB deluxe mini custom kph speedometer with black face plate

Deluxe Mini Custom Speedometer KPH ~ Black Face Plate

$99.95 USD
03-0724
Upgrade your cockpit with this Deluxe Mini Custom KPH Speedometer in chrome with a black face plate. Sized at 2.25", this deluxe-spec unit includes...
Honda CB deluxe mini custom mph speedometer with black face plate

Deluxe Mini Custom Speedometer MPH ~ Black Face Plate

$99.95 USD
03-0725
Finish your custom build with this Deluxe Mini Custom MPH Speedometer in chrome with a black face plate. At 2.25", this deluxe-spec unit packs...
Honda CB custom 4:1 vintage style tachometer front view

Custom 4:1 Vintage Style Tachometer

$79.95 USD
03-0770
Custom 4:1 Vintage Style Tachometer for custom or restoration work on classic Honda CB motorcycles. This is a universal/custom part, so confirm dimensions, it...
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Honda CB all-black deluxe mini custom kph speedometer

Deluxe Mini Custom Speedometer KPH ~ All Black

$119.95 USD
03-0771
Go full stealth with this All-Black Deluxe Mini Custom KPH Speedometer. At 2.25", this deluxe-spec unit swaps the chrome body for an all-black finish,...
Honda CB deluxe mini custom mph speedometer with white face plate

Deluxe Mini Custom Speedometer MPH ~ White Face Plate

$119.95 USD
03-0744
Brighten up your cockpit with this Deluxe Mini Custom MPH Speedometer in chrome with a white face plate. The white face pops with classic...
Honda CB custom vintage style mph speedometer front view

Custom Vintage Style Speedometer MPH

$99.95 USD
03-0760
Custom Vintage Style Speedo (MPH) - Mechanical speedometer ratio: 2240:60. Before ordering, confirm the drive ratio, cable or electrical connection, gauge diameter, and mounting...
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Honda CB micro custom mph speedometer with white face plate

Micro Custom Speedometer MPH ~ White Face Plate

$79.95 USD
03-0751
Fit a truly compact instrument into the tightest cockpit with this Micro Custom MPH Speedometer. A 1.9" chrome-body unit with a white face plate,...
Honda CB mini custom kph speedometer with black face plate

Mini Custom Speedometer KPH ~ Black Face Plate

$69.95 USD
03-0730
Add a clean, compact KPH speedometer to your build with this Mini Custom KPH Speedometer. A 2.25" chrome body with a black face plate,...
Honda CB micro custom kph speedometer with black face plate

Micro Custom Speedometer KPH ~ Black Face Plate

$79.95 USD
03-0779
Fit a compact blacked-out speedometer with this Micro Custom KPH Speedometer in chrome with a black face plate. At 1.9", it's the smallest speedometer...
Honda CB750 CB550 stock style mph speedometer

1973-78 Honda CB750 / CB550 Stock Style Speedometer MPH

$139.95 USD
03-0726
Give your CB a period-correct MPH speedometer with this Stock Style Speedometer. Face dial reads 0-120MPH with back illumination, and the 60MPH=2240RPM drive ratio...
Honda CB deluxe mini custom kph speedometer with white face plate

Deluxe Mini Custom Speedometer KPH ~ White Face Plate

$119.95 USD
03-0746
Bring vintage-style visibility to your metric cockpit with this Deluxe Mini Custom KPH Speedometer in chrome with a white face plate. At 2.25", it...
Honda CB custom vintage style kph speedometer front view

Custom Vintage Style Speedometer KPH

$99.95 USD
03-0761
Custom Vintage Style Speedo (KPH) - Mechanical speedometer 60 km/h = 1400 rpm Before ordering, confirm the drive ratio, cable or electrical connection, gauge...
View details
Honda CB micro custom kph speedometer with white face plate

Micro Custom Speedometer KPH ~ White Face Plate

$59.95 USD
03-0750
Go compact with this Micro Custom KPH Speedometer, a 1.9" chrome-body unit with a white face plate. The smallest gauge option in the custom...
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1978 Honda CB750A · Tachometer & Speedometer Buying guide

Compare the whole instrument before selecting the face style

Complete speedometers differ from face sets and covers. Stock-style listings warn that dial artwork may vary by year. Custom choices add mounting and indicator decisions, without establishing a replacement for the Hondamatic panel.

Parts to consider

1973-78 Honda CB750 / CB550 Stock Style Speedometer MPH Stock-style MPH speedometerBack-illuminated speedometer with a 0–120 MPH face. The listing warns that its dial design may not match every year exactly.View part 1973-78 Honda CB750 / CB550 Stock Style Speedometer KPH Stock-style KPH speedometerBack-illuminated speedometer with a 0–240 KPH face and stated drive ratio 100 KPH=2330 RPM. The listing gives an approximately 4.6-inch housing and 3.9-inch face.View part Mini Custom Speedometer MPH ~ Black Face Plate Custom mini MPH speedometerChrome-body, black-face custom speedometer with backlighting and no integrated indicators. V-plate included; mounting bracket is separate.View part

Related parts: Custom deluxe KPH speedometer with indicators · Chrome instrument cover set; gauges excluded

Check the listed drive specification separately from the dial range

The stock-style MPH unit specifies 60 MPH=2240 RPM, while the KPH unit specifies 100 KPH=2330 RPM. Compare the relevant specification with the fitted drive; the face’s maximum displayed speed is a different figure.

Plan a custom display around more than speed units

The basic mini speedometer has backlighting without integrated indicators. The deluxe version adds indicator lights, but its listing does not establish compatibility with the Hondamatic indicator panel or wiring. Both describe an included mounting plate and a separate bracket. Resolve those mounting and connection details before ordering.

Common questions

Does the mini MPH gauge use the same stated ratio as the stock-style MPH unit?

Both list 60 MPH=2240 RPM. Their dial ranges differ: the stock-style unit reads 0–120 MPH and the mini reads 0–160 MPH. That shared ratio does not settle mounting; the mini is explicitly a custom instrument with a separate bracket requirement.

Which indicators are named in the deluxe KPH mini gauge?

Its description names high beam, neutral, oil pressure and turn-signal lights. It does not name a fuel display or establish compatibility with the Hondamatic gear display. Plan the retained indicators and their connections separately before ordering the custom gauge.

Can I fit a custom gauge just because CB750A appears in its fitment?

Check the stated drive ratio, cable connection and mounting requirements against the actual bike. The custom speedometer listings say they are not stock-type replacements. Their presence in this selection does not establish a complete Hondamatic installation package.

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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