Tree Fort Bikes is moving up! I use the KMC 415h chain on a Motorized bicycle. Beat on it harder than any pedal bike ever could and it takes what i throw at. It shrugs off 50 mile 40 mph 120 degree AZ desert runs and keeps on ticking. I use Dupont Chain Saver try it its the best. It takes a bigger chain tool Tree Forts Park CT-3.2 is a perfect macth. Would make a great BMX chain.