Re: heavy riders
buy a 41 chain from fleet farm or tractor supply, better than any 415 and its only 15 bucks for a 10 foot roll. ive never had one break yet, even after neglecting it all winter long, no oiling, no cleaning. rusty and ratty looking, but still works just fine. and if you want a sturdy rim setup, i would suggest getting a disc brake rear hub and a top hat adaptor, or a hub adaptor like the howard mount or one from pirate cycles.