Travis, you mention using an o-ring chain to quiet things down. I'm curious if these are available for a standard #40 chain? I'm also using a machine chain which seems to work fine. The noise generated might actually be good for safety. The bike has a shock absorber in the wheel coupled to the rear sprocket which probably helps some with the pulsations created by the driven sprocket.
On Sun, May 4, 2008 at 3:59 PM, Travis Gintz <[EMAIL PROTECTED]> wrote: > So, another update to my blog this week. A friend (Loni) Has been > helping me with the motor mount. We got it mounted earlier this week, > and Saturday I installed the motor, front sprocket and the chain, and > decided to test it out. This is with one 18Ah 12V battery. 80A when > first spinning up, then drops to around 20A continuous. > > http://blog.evfr.net/ > > Just the video: > http://www.youtube.com/watch?v=D27TJUc1fK8 > > The chain was cheap machine chain, and while its not TOO loud, It will > be replaced by o-ring chain to quiet things down. I used a 13tooth > front sprocket and 44 rear, but have 11 and 12 tooth fronts to test > and play around with. Right now, its 3.4:1, and adjustable to 4:1 with > the 11 tooth. > > Next step is the battery boxes and getting the controller and charger > finalized. Synkromotive is finalizing the controller, and the charger > is in the process of getting boards made. Once that is all together, > we should be running under full non-tethered power. > > -- > Travis Gintz > 1986 Honda VFR DC conversion > Http://blog.evfr.net/ > >
