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1984 Honda CB650SC Nighthawk Custom Speedometers

A custom speedometer for the 1984 Honda CB650SC Nighthawk needs more than the right face units. The vintage-style MPH and KPH choices below have documented mechanical ratios and mounting dimensions; compare those with the fitted drive, cable and available space before buying.

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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 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 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 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...
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1984 Honda CB650SC Nighthawk · Custom Speedometers Buying guide

Compare calibration and the full mounting envelope

The two vintage-style gauges have the same listed housing dimensions but different scales and stated calibrations. Custom mounting is required; compare both the drive specification and the space behind the dial before choosing either version.

Parts to consider

Custom Vintage Style Speedometer MPH Vintage-style custom MPH speedometerMechanical 0–130 MPH gauge, 85 mm diameter, with LED illumination and 2240:60 ratio. Custom mounting required.View part Custom Vintage Style Speedometer KPH Vintage-style custom KPH speedometerMechanical 0–220 KPH gauge, 85 mm diameter, with LED illumination. Ratio: 60 km/h = 1400 rpm; custom mounting required.View part

Keep the two calibrations identifiable

MPH gauge 03-0760 reads 0–130 MPH and states a 2240:60 calibration. KPH gauge 03-0761 reads 0–220 KPH and states 60 km/h = 1400 rpm. These are the seller’s product specifications, not a verification of the drive currently fitted to the motorcycle.

Check the housing and rear mounting separately

Both listings specify approximately 85 mm diameter, 55 mm body depth and 57 mm mounting centers. Custom mounting is expressly required. Compare the proposed bracket with the housing and mounting-center measurements rather than selecting solely from the dial diameter.

Buying questions

Does the 55 mm body depth include the rear mounts and cable connection?

The listing separately gives 55 mm body depth and describes the rear mounts as 25 mm wide/thick, without defining an overall installed depth. Obtain a dimensioned drawing or confirmation of the rear clearance before finalizing a tight bracket layout; do not assume 55 mm is the complete space requirement.

Does LED illumination mean the original cluster’s warning lights are included?

The records list LED illumination but do not establish built-in high-beam, neutral, oil-pressure or turn-signal indicators. Confirm how the required warning functions will be retained and obtain the wiring details before choosing the replacement layout.

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