Look, I am old and mature enough to not try and BS you boys on here. It is blarringly obvious to me that many of you know way more than I do about minibikes and I am an admitted novice with a new minibike. As I mentioned before, I am not trying to be some Johnny-Come-Lately. Here is what I know. When I first bought this minibike, I changed he oil in it before I ever started it up (replaced with 10w-30 Dino). I have done that often ever since. My bike was really slow, maybe 12-15 MPH tops and I was fine with it. I was clueless about doing anything to make it faster for at least 3 weeks. Then I found this board. The only modification I made to the engine was to adjust the thottle adjustment screw to nealy wide open. Probably have 3 threads left. I couldn't believe how much faster that made my bike. IF not for being the owner of a Honda CRF450, it would have been scarey fast. At any rate, I got curious and purchased a cheap speedo (
Bike Bicycle LCD Cycle Computer Odometer Speedometer - eBay (item 160305540501 end time Jun-15-09 23:55:42 PDT)) on Ebay and installed it to the exact specifications using an exact measurement of the circumference of my front tire. I am confident that it is working properly and is accurate to within a MPH or so. It has clocked me at 30 MPH for several different test runs. Again, my 60 LBS boy has taken it to 35 MPH. Well after some of you questioned the accuracy yesterday, I got curious and was wondering if my cheep Speedo was exactly that. So I downloaded and iPhone Application called "SPEED-O-METER" on my iphone. The information says it uses the iPhones GPS technology to calibrate speed to within +/- 1 MPH. So last night I took it out on my mini. While holding it in my left hand, and subsequently within and inch or so of my cheep speedo, I began making test runs in my neighborhood. I live in AZ and pretty much every street is flat. But, to be sure I traveled both ways on the same streets. My top speed as recorded on the GPS device was 33 MPH. It was only there for 2-3 seconds so I wouldn't say that is a cruising speed at all. However, 31 MPH was fairly managable for long stretches of rides. BTW, the cheep speedo was as accurate as the GPS each time I checked the speed.
So, guys, unless I am doing something wrong here, or both of these devices are defective at exactly the same thing, my "in-tact govenor" 2.8 DB30 will go 33 MPH with a 188 LBS male on it. I'd say that to be most accurate, the bike has a cruising top speed of about 31 MPH, just to be safe. :thumbsup:
PS - I have a screen shot picture of the Speedometer, but I am too clueless to figure out how to post up a picture on this site.
