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1971 Honda CB450K Speedometer & Cable Choices

Decide whether to retain the speedometer arrangement or plan a custom layout on your 1971 CB450K. The black replacement cable has a stated length and Honda reference. The MPH and KPH instruments have distinct mechanical specifications and require their own mounting checks.

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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.
Currently viewing Tach & Speedo

Honda motorcycle parts

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Honda CB750 CB550 CB500 CB450 CB400 speedometer cable 44830-425-870

Honda CB Speedometer Cable ~ Replaces 44830-425-870

$22.66 USD
51-2304
Replace your CB speedometer cable with this Speedometer Cable in black, replacing OEM #44830-425-870. End-to-end length 38.5". Made in Japan.Key Features• Speedometer cable, black•...
Honda CB1000 CB900 CB750 CB650 speedo gear plug

Honda CB1000/CB900/CB750/CB650 Speedo Gear Plug

$43.95 USD
29-0538
Keep your speedo drive gear clean with this Speedo Gear Plug, 15mm outer diameter, 22mm long.Key Features• Speedo gear plug• 15mm outer diameter, 22mm...
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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1971 Honda CB450K · Tach & Speedo Buying guide

Start with the drive and instrument you intend to use

The cable replaces Honda 44830-425-870 and measures 38.5 inches end-to-end. Both custom gauges have mechanical input and LED lighting. They require custom mounting; a cable replacement application does not prove a compatible gauge-and-cable combination.

Parts to consider

Custom Vintage Style Speedometer MPH MPH instrument for a custom layoutMechanical 0–130 MPH speedometer, listed at 2240:60. It has LED illumination and needs custom mounting; confirm the drive and cable match.View part Custom Vintage Style Speedometer KPH KPH instrument for a custom layoutMechanical 0–220 KPH speedometer, specified at 60 km/h = 1400 rpm. Verify the input and cable connection before planning its custom mount.View part Honda CB Speedometer Cable ~ Replaces 44830-425-870 Black 38.5-inch replacement cableJapanese-made speedometer cable replacing Honda 44830-425-870. Compare the end-to-end length and both connections with the arrangement fitted or planned.View part

Related parts: Protective speedo drive gear plug

Resolve the connections before combining purchases

The cable description gives a length and replacement reference without exact thread or drive-tip dimensions. Those missing details matter when pairing it with a custom gauge. Confirm the input connections and the selected instrument’s mechanical requirement independently, rather than assuming the same motorcycle application establishes their combination.

Keep the drive plug on a separate parts line

A gear plug has a protective role: the listing describes keeping the original speedo drive gear clean. It gives 15mm outer diameter and 22mm length. Compare the fitted opening and protection needed before choosing it; the plug is not an alternative cable or a speed-reading instrument.

Buying questions

Does buying a replacement cable establish the correct reading with a custom gauge?

Confirm the drive requirement of the custom instrument as well as cable fit. The cable’s reference and length do not establish that mechanical calibration. Check both ends and the fitted drive before combining the parts in a custom speedometer arrangement.

Where does the gear plug belong in a speedometer parts order?

Choose it for the stated drive-protection function after checking the fitted opening against its 15mm outer diameter and 22mm length. It does not supply the rotating cable or the instrument. Identify the components needed for a working speedometer separately.

Which dimensions matter when planning a custom speedometer bracket?

Both gauges list an 85mm body diameter, 55mm thickness and mounting points 57mm apart. Allow additional room for the rear cable and lighting connections. The listings require custom mounting and do not confirm fit in the original bracket.

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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