Todays ride, 219 Watt hrs, 40.8% average support, 41.8 miles, 1700 ft of climbing, and about 97% of my old legs and butt. Range anxiety??? What range anxiety! I continue to be amazed by this little bike and glad to have the Mosquito in the garage. I held off purchasing the range extender and unless I start carrying more gear or want to go distances that right not my legs and back will not support, I dont anticipate needing it.