Berm Peak is a must stop on the daily internet train if you’re a bike geek. Or bike curious. Or if you’ve simply heard of bikes and are bored. It’s the Youtube channel of Seth Alvo, a dude who loves bikes and hacks. Anyway, he went nuts and fabricated a GIANT 74-tooth gear and mated it to a 24-tooth chainring for max towing purposes and it kinda rocks.