Eastside Velo is a bicycle club registered with United States Cycling Federation, a part of USA Cycling. Throughout the riding season (April-October) the club organizes and supports many classic rides in the Eastern Sierra. ESV members range in abilities from novice to expert, and most of the supported rides are "out and back", so the distance traveled can be up to the individual rider. Eastside Velo is the USCF club of record for the Mammoth Gran Fondo in early September. The club provides significant volunteer support and labor for the event which draws over 1,500 riders to the Eastern High Sierra for a 102-mile ride with only one stop sign.