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1968 Honda CB450K Mechanical Gauge Choices

Choosing between these speedometers for a 1968 CB450K starts with units and compatibility. Select MPH or KPH for the roads you use, then verify the exact product’s mechanical specification. Both gauges need custom mounting and a compatible cable connection.

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Currently viewing Tachometer & Speedometer

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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 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...
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1968 Honda CB450K · Tachometer & Speedometer Buying guide

Use the product specification to check the drive

The MPH instrument lists 2240:60; the KPH instrument lists 60 km/h = 1400 rpm. Both have 55mm body thickness and 57mm mounting centres. Match the drive first, then compare these dimensions with your proposed mount.

Parts to consider

Custom Vintage Style Speedometer MPH Vintage-style 0–130 MPH gaugeMechanical speedometer with LED illumination and the listed 2240:60 ratio. Gauge diameter is 85mm; verify its cable attachment and custom mount.View part Custom Vintage Style Speedometer KPH Vintage-style 0–220 KPH gaugeMechanical speedometer with LED illumination and the listed 60 km/h = 1400 rpm specification. Check drive compatibility, cable fit and mounting clearance.View part

Do not infer connection details from the face

The dial scale tells you which speed units the instrument displays, while the listed ratio describes its mechanical requirement. Neither replaces checking the cable end. The descriptions do not state exact cable-thread or drive-tip dimensions, so verify those details with the cable and gauge before ordering.

Check the parts needed around the gauge

No complete CB450K mounting kit or replacement drive cable is confirmed in these descriptions. Identify the bracket and cable you intend to use and check their compatibility independently. The gauges require custom mounting, even where the vintage appearance suits the rest of your build.

Buying questions

Can I keep the same mounting layout when switching from MPH to KPH?

The listings give the same gauge diameter, body thickness and mounting-centre spacing, but still check cable attachment and rear access for your layout. Those shared dimensions do not confirm drive compatibility or a direct fit to the original mount.

Does a speedometer ratio specify the engine tachometer I need?

No. These specifications belong to the mechanical speedometer drive. A tachometer measures engine speed and has its own drive requirements. Check any matching tachometer separately rather than ordering it from the road-speed gauge specification.

What if my cable attaches but the required ratio is uncertain?

Resolve the drive specification before selecting the instrument. Physical cable attachment is only one check and does not prove that the gauge will read correctly. Compare the chosen product’s specification with the drive fitted to your bike.

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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