Mechanical Speedometer

Price and stock:
Item №
19-110
Price incl. VAT
79.05 €
Available
4
Ready for immediate delivery from our Würzburg, Germany warehouse
The price includes 12.62 € German VAT.
piece
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  • Mechanical speedometer
  • fits FL 1968-1980, FXWG 1980-1983, FX 1971-1972
  • chrome-plated
  • Ø 60 mm
  • thread: M12 x 1.0
  • drive ratio: 1:1 (1000 rpm = 60 mph)
  • →140 mph
  • with universal mounting bracket
  • gross weight: 280 g

Drive Ratio

1:1 Drive Ratio

fits all transmission-mounted drive units on FL models from 1962–1980, FX models 1971–1972 and FXWG 1980-1983. 1000 full turns of the cable equal 1 mi of way, so 1,000 rpm of the cable corresponds to 60 mph.

2:1 Drive Ratio

fits all transmission-mounted drive units on 1936–61 Big Twins and 1952-72 K/XL, all rear wheel drive units on 45” models from 1937–61 and front wheel drive units on FX/XL models from 1973 to present. 2,000 min-1 of the cable corresponds to 60 mph.

2240:60 Drive Ratio

fits all FLH 1981–84, FLST and FXST models 1984-95. 2,240 min-1 of the cable corresponds to 60 mph.

So far for OEM speedos. Aftermarket speedometers may show yet another calibration:

700 rpm = 60 km/h

This is no standard for original Harleys but you will find speedometer heads with such labels on the market — to our grief many designs are only available with this calibration. If 700 min-1 of the speedo cable correspond to 60 km/h of hand reading and you fit this speedo to an older 1968-1981 FLH that requires a 1:1 speedo, it will show about 15% too low. And the higher you gear your FLH the lower the reading will be.

The calibration 700 rpm = 60 km/h means that for 96 km/h (= 60 mph) the cable has to spin at 1120 rpm. That looks a bit familiar, doesn´t it? Yea, it's just the half of 2240 (see above). Just a common Eastern Asia calibration way. Many old Japanese bikes had such speedos and when H-D started to buy instruments from Nippon they had to use the new calibrations that seem a bit odd — if you convert them to mls.

Instruments are designed by the manufacturer for mounting near the handlebars. Instruments must be mounted in such a way that (engine) heat, vibrations and oscillations cannot be transmitted (rubber mounting is recommended). Electronic instruments must not be mounted near ignition components (erroneous readings are possible, circuit board can be destroyed).

Have any questions?

Our service team will be glad to help out: Mondays - Thursdays 08:00-17:00 CET, Fridays 08:00-16:00 CET, Phone: +49 / 931 250 61 16, eMail: service@wwag.com