Today we hit the dirt bike trails with 2 Sur Ron X e-bikes, 2 Sur Ron XX Ludicrous upgraded e-bikes, and a few gas bikes.

I tested my 12ah 72v range extender for the Surron X. Lite Speed Bike also offers a 60v 16ah version for the stock Surron X. With this range extender and my 72v 32ah battery, I have a total of 44ah.