I have been using the same surplus center sprockets with the stock rear sprocket (47t) and no modification to the drive sprocket, do not see any wear issues. Of course I am using a jack shaft that allows me to run the PMG in the correct rotation, that one has #40 chain and sprockets, which seems to stretch a bit more that the #50. A trick you can use if you find yourself needing to use a jack shaft is I made spacers out of steel tube to keep the sprockets and bearings in place, the set screws would loosen and allow the sprocket to move out of align, the key could also move... so with spacers with the correct ID keep the jackshaft bearings and sprockets all lined up. The jack shafts I used are available from Northern in 1/2" and 3/4" and come with two bearings and mounting plates. The drive sprocket is actually in the stock position it would have been with the ICE. My motor is above the jackshaft (just in front of the pommel of the seat/ the rear of the gas tank, and made it possible to maximize battery space. Cheers, Jeff
On 11/5/07, damon henry <[EMAIL PROTECTED]> wrote: > > There was some talk about sprockets on the EVDL a couple of weeks ago and > it was pointed out that surplus center ( > http://www.surpluscenter.com/sort.asp?UID=2007110512354268&catname=powerTrans&keyword=PH50) > has #50 sprockets with hubs for only $5 a piece. It was mentioned that > these will work on 525 chain if you grind down one side of the sprocket to > make it thinner. At only 5 bux I figured even if it was bad advice it > wasn't much risk, so I might as well give it a shot and ordered a couple. I > have been riding with a 14 tooth front sprocket and 41 tooth rear for a > number of years now, and have always been interested in trying a lower gear > ratio. I took my first ride with a 13 tooth front sprocket this morning and > liked the results. I have a couple of steep hills near my house with stop > lights on them, and when my pack is getting low and I get caught at the red > light, it can be a struggle to get up to speed. This new ratio felt > stronger up the hill, although I did not get caught at the light. I still > have to get out on the freeway and see how it affects my top end, but I am > interested in trying a couple of different ratio's. At 5 bux a pop it's > fast, cheap, and easy to do. > > damon > > ------------------------------ > Windows Live Hotmail and Microsoft Office Outlook – together at last. Get > it > now!<http://office.microsoft.com/en-us/outlook/HA102225181033.aspx?pid=CL100626971033> >
