SpeedoDRD DRD-Y1 SPEEDOMETE​R / SPEEDO CALIBRATOR YAMAHA - KAWASAKI - SUZUKI - TRIUMPH - See description for motorcycle compatibility

One of the easier little gadgets to install and use, and once it’s on and you do the calculations - it performs flawlessly. no more guessing how much your speedo is off. I’ve checked with a GPS from everything from 5mph to 95+mph and my bike is SPOT on now!

Pain in the A$$ to find the connector, but that isn't 12 O'Clock's fault. Once I found it (2008 Kawasaki Vulcan 1600 Mean Streak - its behind the left engine cover, btw...not under the seat, not under the tank, not in the head light...sigh) it seemed fine, and checks showed it powering at 400Hz and 1000Hz. But there was NOTHING registering when driving. Factory reset it again, and reseated the plug, which did it. Now it is exactly on target with GPS. Love having accurate speedo. Plus, if / when I get new tires, it will be easy to tweak it for those too. :)

did not work on my wr250r bike would only idle with this installed tried to ride and bike would bog and shut off almost got run over because of this appearantly the fuel injection on the wr250r relies on the speed sensor

check out their website for an awesome install video. easy to install and program.

This thing is awesome. I've been happy with ewverything I've gotten from 12 o'clock labs. Easy to program and then you forget about it!

I could not ask for anything better.I took a ride before I started to get the corresponding reading of the Speed-o and GPS at an indicated 60 MPH (55 GPS), entered those values into the on-line calculator at the manufacturer's web page (in the instructions) and got the recommended settings.It took about 5 - 10 minutes chasing wires to find the connector. Took 1 - 2 minutes to connect it. Took about 2 - 3 minutes to set it. Speed-o checks 100% accurate with my GPS now.

There is no way to describe how nice it is to know exactly how fast I'm going...but I'll try. I was minding my own business doing 9 over and I was pulled. When the cop said I was doing 15 over, I replied "no I was not". He choked a little, told me to slow down and went back to his 4 wheeler. I'm in control and that's how it should be, thanks 12oclocklabs!

Made my speedo pretty accurate on my Yamaha V twins.