To prevent and fix loose spokes on an electric bike, it is important to regularly check the tension of the spokes and adjust them as needed. According to a [post on Electric Bike Forums](https://electricbikereview.com/forums/threads/loose-spokes.22643/), the spoke tension should be reasonably uniform and overly loose ones should be adjusted. To fix loose spokes, you can use a spoke wrench to tighten them a quarter turn at a time, as explained in an [iFixit Repair Guide](https://www.ifixit.com/Guide/How+to+Tighten+Loose+Bike+Spokes/148105) and a [Pedego Electric Bikes YouTube video](https://www.youtube.com/watch?v=Ph7AxjeV7dk). It is also important to check the tightness of the spoke nuts periodically and to make sure that the spoke head washers are not vibrating loose, as suggested in a [post on Bicycles Stack Exchange](https://bicycles.stackexchange.com/questions/38489/electric-bike-rear-wheel-spokes-breaking).
There is a nipple that holds the spoke into the rim, that nipple is what needs to be turned to tighten the spoke.
Make sure not to tighten the spoke too much as it may cause the rim to bend and that is how electric bike loose spokes will be fixed.
