Replace A Four-Inch Speedometer With This Multi-Function Gauge From Harley-Davidson

Combo-Speedo.Tach-4-inchAdd a wide-sweep analog tachometer, a fuel gauge and more information to many Harley-Davidson Sportster® and Dyna® models with this new Combination Digital Speedometer/Analog Tachometer (P/N 70900274, $299.95) from Harley-Davidson®.

The lower half of the instrument incorporates a digital speedometer plus a selectable LCD screen that displays fuel level, miles-to-empty, gear-position, odometer/trip meter, or time of day. The colors of backlighting, the pointer and the LCD screen can be adjusted through the motorcycle hand controls, with more than 600 options available.

The gauge mounts in the stock location with plug-in installation, and the kit includes a data transfer cable to upload initial mileage. This Combination Digital Speedometer/Analog Tachometer fits most 2004-later Sportster® models, 2004-2011 Dyna® models with a four-inch speedometer, and 2008-2010 Rocker/C models. 2007-later Sportster models require a Fuel Sensor Kit, sold separately. See an authorized Harley-Davidson dealer for fitment details.

8 Responses to “Replace A Four-Inch Speedometer With This Multi-Function Gauge From Harley-Davidson”

  1. 1 Kirk Perry Jul 6th, 2013 at 12:06 pm

    I have the 4″ stock speedo on my 2013 XL.

    There’s not much time to look at the speedometer, more than a glance. Really.

    A fuel gauge would be nice, but I use my speedo as a tacho, by making thin tape lines at 23mph, 33mph, 40 mph, and 50 mph. Those are the 5 gear range marks to hit on the (30-T final drive pulley) up-shift to keep the motor from lugging, and provides seamless transition on the down-shift.

    There is no way you can make any mods or repairs to the “black box carburetor” Harley unless you have a Torx-packed tool box, a diagnostic computer, and a whole lot of technical experience. I’ve looked and not found even one traditional fastener like a slot or Phillips head screw.

    The new tach/speedo (and every other appurtenance is a dealership installed item. Let’s be truthful here, HD doesn’t want you to work on your own sickle.

  2. 2 DW Jul 6th, 2013 at 3:01 pm

    I installed this myself on my Dyna 2009 FXD and my only wrenching experience has been replacing my mirrors and pegs. Took me 30 minutes but only because I couldn’t figure out where the wires were at first.

    If I can do it anyone can. I like this speedo because I’ve been looking for for a combo speedo tach that isn’t all digital. This unit is a nice marriage between the analog and digital look that looks like it belongs on your Harley. Colors are all user selectable. Gear indicator and fuel indicator works well too.

    Ive read of some issues on some models with this product on certain years so you may want to google this product or search on some of the Harley forums out there.

  3. 3 Terence Tory Jul 6th, 2013 at 4:37 pm

    Kirk Perry.The Motor Company installs Torx and other special fasteners to slow down tinkerers and prevent idiots wrecking their products.Most Motorcycles are reliable now and are idiot proof.It now depends on the level and determination of the idiot and if they have a Torx in their hand.More damage is done to bikes now by bad mechanics and shade-tree experts than neglect,bad design or manufacturing errors.This speedo unit looks like a rebadged Acewell.Normal low end digital tachs react way slower than cable ones and I don’t like digital speedo displays from a quick eye recognition viewpoint when riding.

  4. 4 Rodent Jul 7th, 2013 at 12:40 pm

    The MoCo could install as stock.

  5. 5 Kirk Perry Jul 7th, 2013 at 1:53 pm

    Just got back from a 35 miler up the canyon and by the beach.
    I like the single sweep needle of the stock speedo. The odometer on it is digital. That works because I only care about my speed needle and the whit marks I’ve made on the chrome bezel above the numbers.

    I tried to imagine the dial face with the sweep needle being a tachometer and the mph in digital and I don’t like it.

    First off, glancing at the speedo now, even though it’s raised into view, is only a furtive glance after 50 mph. I watch the speedo, between 2nd thru 4th gear to be re-affirmed of when to up-shift and down-shift.

    I’m out the rolling up the canyon at 55-60 mph, trying to imagine reading the tachometer for when to shift (one given task for a set of two eyeballs) and then multi-tasking the eyeballs (like Flo’ 🙂 to encompass the digital speed as well… and me no like, so I’m wiring Swifty over at the dealership to cancel my tach swap-out and to leave my stock speedo on “#2” (XL 1200cp) as shipped – in August.

    Thanks for the imput. It’s helped me make an informed decision.

  6. 6 Woody's Jul 8th, 2013 at 8:59 am

    More choices = better. Looks like a great product. I like having a tach on any bike, even if it’s only glanced at now & then.

  7. 7 Kirk Perry Jul 8th, 2013 at 11:21 am

    “Gear indicator and fuel indicator works well too.”
    That’s an improvement over stock on both counts. You don;t know when you need fuel until the gas pump icon lights-up, and then you have about 2 gallons left, I think, judging from how many gallons it takes to fill it at that point. Guess one of my (2) serivce manuals could tell me for sure if I looked.

    Neutral on the XL 1200 is a narrow gate that’s easier to find on the down-shift, than if you’re in first gear at a light and try to shift up that one-notch into neutral; then get “lost” in trying to find it, and the light will turn green again before you can. 🙂

  8. 8 Rob S Jul 23rd, 2013 at 8:24 pm

    I’ve always felt that a ‘real’ motorcycle just has to have a tachometer, so when my 2013 Iron was in for its 1000 mile servicing, I had the dealership install this tachometer/speedometer gauge.
    I like the features it has; for me, the gear indicator is a good thing to have. It’s nice, at a glance, to see the gear indicated. Although it is a little strange how the gauge ‘knows’ what gear the bike is in. It calculates it by running the road speed against the engine RPM and then displays the result as the gear number. It takes it a little time to update the display when you shift, and it will only display the gear when the clutch is engaged. Pull in the clutch lever when coming to a stop and the gear display blanks. If you roll up to a stop while in neutral, the display will also be blank even if the clutch is engaged. It takes a bit of getting used to.

    I didn’t opt for the in-tank fuel level sensor, so the tach doesn’t display any info on amount of fuel or range. Sometime down the road, I intend to add that feature, though.

    I’ve noticed a curious thing–I now tend to use the tach as a speedometer. The proximity of the analog tach needle to the digital speedometer display makes a comparison between the two readings very easy to do. I caught on quickly that a tach reading of 3100 RPM in fifth gear is 60 MPH. In second gear, whatever the tach reads is pretty much the bike’s speed, if you drop the last two zeroes off of the RPM indication (example: 2500 RPM equals 25 MPH). In my opinion, this gauge is what the bike should have come with stock.

    I do have a complaint, though. The tach only comes with a chrome bezel; the original speedometer’s bezel is black, which I prefer. At some point, I’ll have to figure out a factory-looking way to paint the tach’s bezel matte black so as to eliminate the chrome.

    But, all in all, I consider this gauge a must.

    Rob S

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