You may have already heard me or someone else talk about the Micro-Start line of jump start/charging batteries. How cool is it to have a device on-board that can literally jump start an 18 wheeler? On top of that, it charges my phone, GoPro, Sena SMH10, Sena Prism, etc... for about five days before I have to find a wall plug in to recharge it. They also happen to make lithium ion batteries for our bikes that are just as powerful but the real kicker here is the weight savings. This particular battery will save me a whopping 6lbs! I've already lost 30 lbs myself and this battery, as part of Rottweiler Performance's "diet parts" package," will save an additional 28.5 lbs! I'd better start getting good at covering that rear brake lever because I have a feeling my front wheel is going to get a lot lighter! My 600lb GSA didn't make as much sense to go with a lithium ion battery but I think this 990 does given the total weight we're saving is so significant. Antigravity Batteries: the lightest, smallest and most POWERFUL batteries made.