METZELER Band MCE 6 DAYS EXTREME (F) 90 100 21 M C 57R TT M+S MTX clone not published type 110 and type 250 type 110 and type 250 } Assortment of heat shrinkable tubings (approx 6 DAYS EXTREME features a high resistance carcass material with remarkable dampening characteristics that provide great versatility on different terrains The specific polymers of the compound grant also chemical and mechanical grip on both dry and slippery surfaces