bike is a 2020 with 3500 miles on it. Admittedly I've only clocked about 300 miles in the past year but when its been in the garage its been on a tender. Rode it today about 20 miles over to the local shop. Came back out to head home and ignition would come on but wouldn't start. Got a jump from one of the guys at the shop, rode home, let it sit and started back up no problem. poked around and got the following: bike off - 12.95v ignition on - 12.77v motor running - 13.8v - 14.2v has the stock yuasa YTZ14S in it. Ordered a Antigravity ATZ10 as a replacement. Anyone use one in a speedy RS? should I just stick with the stock Yuasa? Thanks gitter