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1966 Honda CB450K Custom Gauge Options

If you are changing the instrument layout on a 1966 CB450K, decide how the replacement speedometer will connect before selecting its face. The two choices here use mechanical drives and custom mounts. Compare the installed drive, cable end and bracket dimensions first.

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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.
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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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1966 Honda CB450K · Tach & Speedo Buying guide

Build the gauge layout around a compatible drive

The MPH and KPH options share an 85mm gauge diameter and LED illumination. They are custom instruments, with mounting points 57mm apart. Their stated drive specifications must be checked against your motorcycle’s installed equipment.

Parts to consider

Custom Vintage Style Speedometer MPH Vintage-style MPH speedometerMechanical 0–130 MPH gauge with the listed 2240:60 ratio. Custom mounting required; compare its 85mm diameter and cable connection with your proposed installation.View part Custom Vintage Style Speedometer KPH Vintage-style KPH speedometerMechanical 0–220 KPH gauge, specified at 60 km/h = 1400 rpm. It has an 85mm diameter and requires a suitable custom mount and drive connection.View part

Check speed input and lighting separately

LED illumination describes the gauge lighting, not its speed input. Both products are mechanically driven. Plan the cable connection as well as the lamp wiring, and confirm the lighting requirements from the product details before connecting the replacement instrument to your motorcycle.

Allow space for the connections

The descriptions list 55mm gauge thickness and 57mm mounting centres. Measure behind the intended mounting position so the cable and lighting leads have room. Checking only the 85mm gauge diameter can miss a problem with the rear of your proposed instrument layout.

Buying questions

Can these gauges replace the original instrument without changing the mount?

The listings require custom mounting. Compare your bracket, cable attachment and drive specification rather than treating either product as a direct stock replacement. Matching the motorcycle’s model year does not establish those installation details.

Is a matching tachometer guaranteed to use the same drive arrangement?

A tachometer needs its own drive specification and cable checks. A matching appearance does not prove mechanical compatibility. Verify the linked tachometer’s requirements separately before buying it for a 1966 CB450K instrument layout.

What details should I provide if I cannot identify my gauge drive?

Provide any markings on the existing instrument or drive, plus photos of the cable ends and mount. Check the exact gauge listing against those details before ordering; do not select a mechanical instrument by appearance alone.

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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