Interesting. For what I paid for the iZip Zuma, I hope I won't need to be buying anything more too soon, but I may look into those bar ends. Thanks for the info. I'm not understanding why Samse considers his LifePO battery a "piece of junk." If you do, send it on over to me! I'm expecting delivery of the bike any day and I'm a nervous wreck, to say the least. Hope I did the right thing. I got a good deal on it, approx. $350 less than the price everywhere else and free S&H. ...Ann, seems to me you're in terrrific shape to ride all that terrain on tires I find are harder to pedal on.... I hope to get that healthy some day soon!