we have on our aprilias for almost 2 years. use a batery tender between events. i had one of the little ytx7l-bs ones on my ducati 916 ... no battery tender ... 7 months of street riding combined with 5 months of racing and no battery tender. it gave up the ghost on our ride to laguna two years ago... they're not bad. try to put in a real good and slow charge the first time and tend them thereafter. =) chris
