07 Changed front & rear sprockets.

[rider18]

Hello,
I changed my front and rear sprockets to -1/+2. The acceleration feels great. But I also knew that my speedometer would go off. I had my friend ride at 60mph on his bike next to me, when his showed 60mph, mine showed 67mph.

I wanted to know if getting a speedohealer would be more worth/efficient or getting ECU flash? By the way, would ECU flash solve this issue? If it does I dont mind doing the ECU flash cause there are more benefits to it.

Thank you all in advance.

[RayJohns]

Originally Posted by rider18

Hello,
I changed my front and rear sprockets to -1/+2. The acceleration feels great. But I also knew that my speedometer would go off. I had my friend ride at 60mph on his bike next to me, when his showed 60mph, mine showed 67mph.

I wanted to know if getting a speedohealer would be more worth/efficient or getting ECU flash? By the way, would ECU flash solve this issue? If it does I dont mind doing the ECU flash cause there are more benefits to it.

Thank you all in advance.

Speedohealer is what you want.

It's a pretty easy install and very easy to adjust later if you need to change tire sizes or sprockets, etc. I have one on my bike and it works great. There's also a handy "recall" function that will show you your most recent top speed. It can be reset with a push button.

On my bike, I wired the horn relay into a micro relay that accomplishes the "push button" part - so I can push the horn button and see my most recent top speed while riding (hold it for 3 seconds to clear).

If you have a GPS, you can calibrate your bike's speed using that (once you have the speedohealer installed). You can also use the formula they supply and get within 1 MPH +/- per 100 MPH or so.

I definitely would not reflash the ECU. It's much better to get the speedohealer and install it. It's basically a plug and play and then you have a means to adjust from then on.

Ray

[headshake1]

I recently did the same thing and have a Speedohealer V4 on it's way as we speak. I like the fact that it can store 2 settings, (I think it's only 2) so you can basically switch back and forth to adjust for things like rear tire profile changes with the push of a button. Their website also has a great application that generates a calibration code for the unit based on parameters such as make/manu, tire and sprocket size. And the install is a simple process of plugging in one end of the unit into your speed sensor wire harness and then running the wire through to the tail section and plugging the other end into the speedohealer unit itself and velcroing it down under the tail somewhere for convenient access. What can be more easy than that?

[graphitegripper]

Drd speed healer is only 70$ and love it does same thing speed recall etc. set it and leave it. Flash tune you can adjust it within the tune but its not accurate just by typing in gear sizes due to factory error. But def encourage you to reflash it. Send it my way if you wish I have the 07-08 interface will really wake that beast up


Sent from my iPhone using Motorcycle.com App

[rider18]

Thanks for the inputs. I am trying to keep minimum devices on the back of my bike. I already have a PC5. Even after a proper flash I wont get the correct speed readings? I dont mind flashing it.

graphitemaker, sending you a PM