Hi every one, I'm a fairly new rider (5ys) and have purchased a 2005 sportster 883xl low. I thought some of you could help me out and teach me a bit about the bike. I don't have a manual for it. first of all the engine has been upgraded to a 1200. how does this affect performance? I feel that the bike can be very fast and I need to take care not to let it get away from me. also, this is going to sound stupid, but, is there a general rule in regards to shifting gears at around certain speeds. I don't have a tachometer and can't always here the engine sound clearly. I live in Canada and have to convert km to miles, that's easy enough. that's all for now. that's for your information.