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1986 Honda CB450SC Nighthawk Speedometer Mount & Cable Measurements

Before buying mounting or wiring parts for a 1986 Nighthawk speedometer conversion, obtain the complete fitting specification. These gauges publish housing measurements and mounting-center spacing. Supplied bracket contents, connected rear clearance and the electrical information needed for LED lighting still require confirmation.

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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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1986 Honda CB450SC Nighthawk · Speedometers Buying guide

Translate gauge dimensions into a complete fitting plan

Each gauge is approximately 85mm in diameter and 55mm deep, with mounting centers 57mm apart and LED illumination. Use those measurements to assess the proposed location. They do not specify an included bracket package or the total space needed once the cable and mounting parts are connected.

Parts to consider

Custom Vintage Style Speedometer MPH MPH instrument for a custom bracket assessmentApproximately 85mm diameter and 55mm housing depth, with 57mm mounting-center spacing. LED illumination and 2240:60 mechanical calibration require their own wiring and drive checks alongside the mount.View part Custom Vintage Style Speedometer KPH KPH instrument for a custom bracket assessmentThe same approximate housing dimensions and mounting spacing, with LED illumination. Match its 60 km/h at 1,400 cable rpm calibration and confirm the complete connected assembly before ordering fitting parts.View part

Confirm supplied fittings before ordering a bracket

The mounting-center measurement describes where the gauge attaches; it does not itemize the hardware supplied. Request that information for the selected instrument before choosing additional mounting pieces. This model is listed with custom mounting required, so plan the bracket around the actual installation space.

Request connected clearance and lighting information separately

Ask for the rear space needed with the cable and mount attached, rather than treating housing depth as total installed depth. Obtain LED operating voltage and wire assignments as a separate specification. Neither the complete rear-clearance figure nor those electrical details is stated.

Ordering questions

Should I add a separate bracket to the speedometer order?

First ask which mounting pieces accompany the chosen gauge. The listing states 57mm mounting centers but does not itemize a bracket package. Use confirmed contents and the available mounting location to decide which additional fittings the custom installation needs.

What information is needed before ordering connectors for the LED lighting?

Obtain the illumination operating voltage and the assignment of each wire. LED lighting is specified, but those electrical details are absent. Choose connectors and plan the wiring only after the requirements for the selected gauge have been confirmed.

What clearance should I request for a tightly spaced instrument location?

Request dimensions with the proposed cable connection and mounting parts attached. The approximate 55mm figure describes housing depth, without establishing total rear space. Confirm the complete assembly clearance before using the available room to finalize the mount or cable arrangement.

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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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