I mostly installed our speedometer out of curiosity but...
I have found that it is also a very useful tool for measuring things such as Speed (RPM) gains (or losses ) from recent upgrades or jetting changes, Mileage info, Lap times, Differences between the top speeds of different weight riders, The time of day...
With this simple $10.00 Schwinn 'bicycle' speedometer, I can now easily SEE exactly what our bike is capable of and exactly what any changes I have made did to the top speed of it... The 'proof is in the pudding' and this tool WILL let you easily see if you have done any good or not with any 'mods' you have made to your pocketbike.
I loved the quality of the Schwinn speedometer but there are a few things that NEED to be changed for this to properly work on a pocketbike wheel and be both safe and accurate.
First thing to do is to throw the original magnet found in the package into the garbage as fast as you can. This is a garbage quality magnet of the weakest order and Schwinn suggests a gap of only 1mm between the magnet and the pickup sensor... IMHO, That is WAY to close of a gap and this stock magnet has NO balls. It will barely pick up a handfull of paperclips and this is likely why Schwinn says to use a 1mm gap. This magnet is also designed to fit a wheel with 'spokes' and pocketbikes generally do not have these, so mounting this magnet WILL be a PITA at best...
I chose to use a few rare earth magnets on our install. These magnets are powerful enough to pull the friggin iron out of your blood (ok, so maybe not quite that strong...) and will easily allow you to run a much larger gap between the magnet and sensor with NO issues at all...
Next thing to get is some JBWeld... This stuff rocks and just a drop or 2 placed in the correct places WILL secure the sensor to the fork in such a way that you will have NO issues with things coming loose and possibly causing a mess or an accident...
I also used the JBWeld to secure our magnets to the wheel and have had NO issues with them either loosening or trying to come off. Awesome product for sure IMHO.
If you will check out the pics below, You will find some shots of our magnets and sensor assembly mounted on the wheel/fork, Pics of the Speedometer installed on the handlebars, and a better pic of the really cool 'Skull and Bones' valvestem caps that we run on our bike...
FWIW, These 'Skull and Bones' valvecaps added approximately .000267 MPH to the top speed of our bike due to the pure intimidation factor that they posess... Other riders see these caps and won't even fire their bikes up now if they are racing with us...
IamCornholio (and I hope this helped someone as that is what I was trying to do here friends...)
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