SpeedoDRD H3 Speedometer Calibrator

Installed on 2015 CB500F with 16F/38R sprockets and couldn't be happier. Install is tricky but doable with a couple flat screwdrivers and dental pick type tools from HD. Picture is inaccurate, but proper H3, Version M device was received.

Used three of these to adjust shifting and speed on my Honda pioneer 1000 after doing an Internal Gear Reduction and 30” tires. My Speedo is dead on and my shifting is normal again. I needed on for the front diff sub trans and rear diff. You’ll have to do some math to figure out what to set them at though.

Good product, straightforward to program it but difficult to install due to the number of items you have to remove from your bike to access the speed sensor where this unit plugs in. It does work though and is easily re-programmed if needed to tweak your adjustments

I ordered one and installed it not to long ago. Got a GPS speed app and I'm 1 mph under. Perfect! My buddy has the same bike and ordered some other product.... HORRIBLE IDEA!! I ordered him this one and he is also amazed how easy and accurate this is. If you change gears on a bike this is what you need.

Worked as advertised, easy install, definitely read the instructions and make sure you understand the calibration process before you dive in. The simpeliest and most effective way of correcting the speedometer on my 2015 FZ-09

Works great, easy to install and directions to program are simple. Thanks again

Quality Product!

Still working great after a year!