If you ever have changed the size of your rims or even tires, you know that it alters the final ratio that the speedometer sees, infering inaccuracy in the speed and distance displayed. In some cases it even leads to some difficulties in finding the right gear to match up the new wheels.

Here is a solution that bike builders love: a  speedometer or combo speedometer-tachometer that uses the GPS technology to calculate instantly the speed of the bike. The idea is quite simple as those are used for decades on boats and planes, but someone had to adapt it for motorcycles. “Legendary Motorcycles” made them in 4” and 3” ½ diameter but not yet in 5” for Vincent.

4″ Chrome Electronic GPS Speedometer/Tachometer
Color/Finish: Chrome with black face
Dimensions: 4″ Face Diameter x 1-3/8″ Tall Housing (101.6 mm x 34.9 mm)
Fits: Universal
Bulb Type: LED
Material: Plastic/Metal
SKU: SM2803
Lifetime warranty
MSRP: $369.00
Bracket MSRP: $49

vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-electronic-parts-legendary-motorcycles-gps-electronic-speedometer-speedo-tachometer-tacho-sm2804-1

vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-electronic-parts-legendary-motorcycles-gps-electronic-speedometer-speedo-tachometer-tacho-sm2804-3

 

vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-electronic-parts-legendary-motorcycles-gps-electronic-speedometer-speedo-tachometer-tacho-sm2804-4

Bracket 4 dual gauge

4” included the following features:
Odometer and Resettable trip
5 Hz update for fast needle response and accuracy
Display 0-60 Time and distance in feet.
Display 1/4 mile time and speed.
Show elevation
Peak Recall max speed during run
Current direction heading
Accurate GPS Clock

obj511geo507p14.png

3″ ½ Chrome Electronic GPS Speedometer
Color/Finish: Chrome with black face
Dimensions: 3-1/2″ Face Diameter x 1-3/8″ Tall Housing (88.9 mm x 34.9 mm)
Fits: Universal
Bulb Type: LED
Material: Plastic/Metal
SKU: SM2801 LCD
Lifetime warranty
MSRP: $299.95
Bracket MSRP: $39

vintage-cafe-racer-caferacer-bobber-brat-chopper-custom-motorcycle-electronic-parts-legendary-motorcycles-gps-speedometer-sm2801-2

Bracket 3 3-8 Speedo-Tach

Details about brackets
6061 CNC precision cut Aircraft Aluminum Brackets.
Possibility to have them custom made

More information on:

http://www.legendary-motorcycles.com/miscparts.html

Alternatives brands:

http://www.autometer.com/cat_gaugedetail.aspx?gid=4323&sid=86

http://www.speedhut.com/about-cobragauges.html

http://www.coloradospeed.com/auto-meter-sportcomp-indash-tach-speedo-5-speedometer-gps-w-rally-nav-display-140-mph-p-27275.html

 

Philippe Guyony © 2014

 

 

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