Heres my take. I was looking into aftermarket a arms. i was torn between Timbersled and zbroz. Ive had Timbersled on my last 2 yamahas and they are tough and nice. Never ran zbroz but a few friends have and love them. Was just about to order a set then i took a trip to cooke city a few weeks ago. I smoked something under the snow and it threw me over the bars and bent a lower on the right hand side. Was pissed. Limped her back into cooke, went to the polaris dealer and bought a replacement lower that they had in stock. Slapped it on in front of the hotel in about 45min and was ready to rip it up the next day. Snowed a ton that night and was an amazing day. If i had aftermarket arms i wouldnt have rode that day. granted with aftermarket arms it MIGHT not have bent, who knows.