WMFg Gancio Deragliatore #233 per Trek Top Fuel Superfly Sessione Rumblefish Slash
Do not simply install a new derailleur and forget to properly adjust the derailleur. Rumblefish / Elite / Pro 142x12 Thru - 2013. Rumblefish 1 & 2 142x12 Thru - 2011-2012. Superfly 100 Carbon & Aluminum 142x12 Thru - 2012-2013.