I am so on the fence about ordering a jackshaft from sickbikeparts.com . My questions are .... How much trouble is it to keep rear gears adjusted? Is it a constant tinkering to keep adjusted correctly. I have always had no luck with bicycle gears. Is it worth the price of two motors? LOL! Also, will it allow me to do some slow off roading? Hard to start? Will regular (wal mart) sprockets work or am I going to need to upgrade everything? See...... I got some questions. Thanks