Isi ihe nkedo nke nkedo bụ nke ígwè, na wheel core bụ nke polypropylene (PP) nwere ike ibu ike.
A na-eji TPR eme ihe dị ka ihe dị n'elu wheel, nke nwere mmanu mmanu mmanu mmanu, mmiri na-eguzogide mmiri, nguzogide ogwu na ihe mgbochi ebu, ma nweekwa ihe mgbagwoju anya na mbelata mkpọtụ.
A na-eji ihe ABS eme ihe n'èzí wiil ahụ, bụ nke na-egbochi corrosion na-eguzogide ọgwụ.Nchikota nke diski na-agbagharị agbagharị ụwa na bọọlụ nwere nnukwu ibu na ike ibu ike.