SpeedoHealer

[Gruvin2]

I'm very interested in getting one for my bike. I'm looking for input from anyone whom may have one installed or has knowledge about them. I like that I will know my actual speed/mpg, as well as my odometer showing actual corrected mileage. Any info is appreciated. Thanks in advance.

Cal-Sportbike >>> Speedo Healer, Galfer Brakes, Gear Indicator Pro, Elka Suspension, Shogun Sliders.

[Atreyu]

google speedohealor

[Gruvin2]

I've read about it from the website already. I want real world experiences from those whom have em. Seems like a worthy investment to me.

[ConqSoft]

Yes, I've had several on them on several bikes. Great product.

[Italgirl1971]

I have one being shipped at the moment. Should have been here by now but it seems to have been lost in transit. Will give you some input once I get it installed - if it ever gets here

[sinfuldragon]

I thought you were giving your bike to me since you don't ride it anymore...

I really need to get one as well. being a tooth down in the front has taken a toll on my speedo's accuracy.

[randyjoy]

Put one on my 954 a couple of weeks ago. Used a portable GPS to figure out my correct speed, then set the Speedohealer per the instructions. Speedometer is spot on now. Only took a few minutes to actually program, takes longer to route the cable.

Nice to know how fast you're really going.

[Sime]

I have a custom SpeedoHealer on my 95 900RR with 02 F4i gauges. It's custom b/c the multiplier needs to be set at about 380%.

Awesome product. As mentioned above, I like to know the 'real speed' that I am travelling, not a hypothetical speed. The SH allows you to program for any combination of sprocket combinations. Oh, it's cheaper and more accurate than the 'YellowBox' competitor.

I calibrated mine using a Sigma BC1200 bicycle computer, which is actually more accurate than GPS, but you do have to set it up which is a little bit of a pain. It only cost about $15 to buy the BC1200.

Cheers,
Sime

[Gruvin2]

I couldn't resist. Ordered it today! Thanks for all the input gang.

[jerseydrew]

i have one and the version 2 with the top speed recall is cool. what is funny is when everyone brags about their speeds for the day and you bring them back down to earth telling them they were going 10-15 mph less then they are bragging about. lol

[gearheadeng]

I just put one on my 954 last weekend. It was a PITA to get to the connector, had to take off the side fairings but other than that super easy. Best improvement.... nice complement to my gear indicator. I calibrated it to a GPS and it is spot on now. Nice to slow to the EXACT posted limit when you are being closely "observed" by your local friendly cops.

[Gruvin2]

What are my options for calibrating it? I don't have a GPS, but I know friends who do. I read its plug-n-go setup, so not worried about that, but rather the cable routing and speedohealer placement.

[jerseydrew]

Originally Posted by Gruvin2 What are my options for calibrating it? I don't have a GPS, but I know friends who do. I read its plug-n-go setup, so not worried about that, but rather the cable routing and speedohealer placement.

it is quite easy, get a stop watch that hangs around your neck. find a highway that is sorta flat and has mile markers. go 60 miles an hour, and time your riding for 3 miles. then you can do all the math and figure things out.

[Sime]

Originally Posted by Gruvin2 What are my options for calibrating it? I don't have a GPS, but I know friends who do. I read its plug-n-go setup, so not worried about that, but rather the cable routing and speedohealer placement.

If you read my post again, it will give you another option.

[Gruvin2]

Just seems to me there would be too much room for "human" error. I've seen totally different reading's on my 3 mountain bikes I have for the family. All the same computer on 3 different bikes. I know the basic premis for the setup, that is all. For those who were thinking.. well I'm going to get different readings while mountain bike riding. You are correct. I'm talking about taking them on a hard packed path and have variances of current speed upto 5mph different while only going perhaps 15mph. I'm certain the shop where I had them installed had some newb do the install on at least one of em. Because of this I don't get the warm n' fuzzies about that method.

Sime, I have no doubt of your knowledge of motorcycles. Just from the posts I've read you are very informed. I am curious how a bike computer is able to be more accurate then a GPS though? I only ask because I have not a clue.

[Sime]

Originally Posted by Gruvin2 Just seems to me there would be too much room for "human" error. I've seen totally different reading's on my 3 mountain bikes I have for the family. All the same computer on 3 different bikes. I know the basic premis for the setup, that is all. For those who were thinking.. well I'm going to get different readings while mountain bike riding. You are correct. I'm talking about taking them on a hard packed path and have variances of current speed upto 5mph different while only going perhaps 15mph. I'm certain the shop where I had them installed had some newb do the install on at least one of em. Because of this I don't get the warm n' fuzzies about that method.

Are they the same mountain bikes?
Are they the same model tires/same size of wheel?
Do they have the same condition tires?
Are the tires inflated to exactly the same pressure?
Is the testing/comparison completed at exactly the same time?
Was the setup even off my a millimeter or two?

All these things will impact on the reading. When you say different speeds on the same computer, something is up there. If everything is identical, there will be no variation. For all intensive purposes, the computer would think it were the same bike. For you to get a different reading, a variable (or multiple variables) has/have changed somewhere! Besides, what reference did you use to establish that the indicated speeds were different?

Sime, I have no doubt of your knowledge of motorcycles. Just from the posts I've read you are very informed. I am curious how a bike computer is able to be more accurate then a GPS though? I only ask because I have not a clue.

Thanks. The reason why the bike computer is very accurate (more so than GPS) is because it uses known measurement for calculation with no deviation. By contrast, the GPS system uses a deviation that makes it accurate for positioning purposes to be accurate only to within 10 feet (it used to be 50 feet until the US Government turned off the 'enforced positional deviation' - or whatever it was called).

So..........If there is some deviation to allow accuracy to within 10 feet, and, as speed is the measure of distance over time, well, if the 'distance' component has variation, and this will affect the time component, then it is natural to expect that the speed derivation will be slightly off too.

The bike computer uses one accurately measured revolution of the front wheel, and then given that measured distance (and if measured correctly/precisely....no error), it calculates speed. That is the true measure of 'distance over time'.

Of course, the one thing that makes a GPS more consistent over time is that on different days, the tire pressure variation will change the rolling circumference of the tire (even by a little). So, there is room for the speed calculation to be off. But the bike computer method IS more accurate than GPS at the time the speed setting is initially made!

Irregardless, either method of using the bike computer or GPS to calibrate speed will be infinitely more accurate than attempting to trust the OEM speedo setting! And measuring the distance between mile markers is hard because of variations in the road conditions, and the fact that it is extremely hard to hold the bike throttle open exactly the same for an entire mile...and operate the stop watch at the same time.

I'm no physicist, but I hope that explains things in simple terms. I believe my reasoning is sound.

Cheers,
Sime

[JMaxey]

Sime, can you shed a little more light, or direct me to some info on the bicycle computer? Info such as how they are set up, etc. I'm very curious of this method since I have no GPS. I just have no idea what it takes to adapt a bicycle system to a motorcycle. I've been wanting to install a speedohealer on my stock 1000RR but the only thing holding me back is finding out it's true speed to begin with.

TIA

[Sime]

Heya,

A GPS would be the easiest method of marking the speed, but the bike computer is cheaper if you can't access a GPS. A small magnet (supplied in the kit), is attached to the front left brake brake rotor (you can use JB Weld to permanantly mount it, or wrap it tightly with electrical tape (this will work for a little while, but you stand the chance of losing the magnet as time passes (mine lasted about a week before the magnet flew off!).

The sending unit mounts to the fork leg via double sided tape (I use 3M VHB which is real sticky, available at Radio Shack). This gets placed within 5mm of the magnet.

The display/computer is mounted anywhere within visible distance to the triple trees. You keep the bike level, and with the tyre valve pointing straight down, roll the bike forward one full revolution of the front wheel, with the valve straight down again at the end. Measure the distance between the two points (or do it for two revolutions and take an average).

You input that into the computer and it uses that as the base reference. It calculates the distance between the wheel travel and the time it takes the magnet to do a full revolution. This is how it delivers actual speed.

The model I bought is the Sigma BC1200. It is all grey in color with a darker grey surround). It is accurate up to 180mph. Other brands of bicycle computers are usally limited to 60mph. After everything is calibrated, you can remove it...or leave it on if you want.

Hope this info helps.

Cheers,
Sime

PS. Attached is a pic of my BC1200 on my bike in earlier days.

http://i108.photobucket.com/albums/n...s/945June4.jpg

[JMaxey]

Thanks a ton for the info, Sime! That looks the exact route I need to go.