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1983 Honda CB450SC Nighthawk Vintage-Style Instrument Options

For a custom instrument project on the 1983 CB450SC Nighthawk, consider the drive connection as carefully as the display. These two vintage-style speedometers offer MPH or KPH scales, but require a compatible mechanical calibration and a mounting plan beyond their listed model application.

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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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1983 Honda CB450SC Nighthawk · Tach & Speedo Buying guide

Establish the drive requirement before choosing the display

The MPH speedometer reads 0–130 mph with 2240:60 calibration. The KPH version spans 0–220 km/h and is calibrated to read 60 km/h at 1,400 cable rpm. Each lists an approximately 85mm housing, 55mm depth, 57mm mounting centers and LED illumination. Custom mounting is expressly required; a model listing does not confirm stock-cluster interchange.

Parts to consider

Custom Vintage Style Speedometer MPH 0–130 mph vintage-style speedometerMechanical instrument specified at 2240:60, with an approximately 85mm housing and 57mm mounting centers. The LED-lit display is a custom installation choice, requiring drive and cable checks.View part Custom Vintage Style Speedometer KPH 0–220 km/h vintage-style speedometerMechanical KPH instrument calibrated for 60 km/h at 1,400 cable rpm. The stated housing dimensions match the MPH option; check the drive and custom mounting before selecting the scale.View part

Tell the supplier about changes to the drive

The KPH information identifies wheel, gearbox, tire size and cable-drive ratio as accuracy factors. Record changes in those areas when checking a gauge choice. Its vintage styling and wide model application are not evidence that an altered drive will produce the required reading.

Include the lighting information in the plan

LED illumination is listed, but the descriptions do not give voltage, wire assignments or built-in warning-lamp functions. Confirm those details before planning electrical connections or deciding how existing warning functions will be retained in a custom cockpit.

Questions to settle before buying

Can the display scale alone decide which speedometer to buy?

Choose the units you want, then match the drive specification: 2240:60 for the MPH unit or 60 km/h at 1,400 cable rpm for the KPH unit. Both are mechanical instruments requiring custom mounting, rather than confirmed stock-cluster replacements.

Which bike changes should I mention when confirming speedometer accuracy?

Tell the supplier about any wheel, speedometer gearbox, tire-size or cable-drive-ratio change. The KPH listing identifies those as accuracy factors. Compare the resulting drive requirement with the chosen instrument’s calibration before relying on a listed model application.

Will the listed LED illumination preserve the existing warning-lamp functions?

The supplied information confirms LED illumination but does not specify built-in warning lamps, wire assignments or operating voltage. Establish those details and plan how the motorcycle’s existing warning functions will be retained before choosing the custom display.

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Send your model and year, plus photos of your existing part and any changes to the original setup.

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