Because I am a trials Rider I have broken 2 frames last year and one 400$ rear wheel I am sick of spending money on my bike It is becoming ridiculos so might as well put everything top notch and even then I know I can still break it.I like doing 20 f drops on flat and its kinda really hard on bikes,I also broke 4 hubs in one year where I stripped the internal cassette body!!! Figure that out!The Zoo hub has over 200 engagement points specifically designed for trials :)..