Originally Posted by Rad45

The lifespan of an electric bike is the ability of the owner to repair and maintain it. I purchased a used 1999 EVG bike in 2006. It is now approaching 19,000 miles. Yes, I have to replace a few parts, usually to improve it. Original brushed motor lasted 10,000 miles. Switched to Crystalyte rear hub motor and controller with 4 - sla batteries. Last year swapped those out for lithium. Also purchased three rear tires, three sets of brake pads, a couple new brake, gear cables: the usual bike stuff. The bike is now 23 years old and I still ride it several times a week.