Lost some woody plastic backers, and the rest had cracks in them or part of them was missing, I dont no if I ride real hard or they put them on to tight, or just got a bad set, But my dealer is great, called him and he said bring it right in, we will fix it wile you wate, and he did, and said he has been putting them on all the sleds and I was the first to bring it back with broken ones, he said keep an eye on them and bring it right in if I need to. Sun & Snow, NY