I have a 2004, American made Trek 4900. I need a new Seat Post clamp but do not know where to get one. I went to my local LBS and bought the biggest clamp they had with quick release and it is still too small, so I do not know where to go from here. My problem is the stock part has this flimsy rubber washer between the quick release and the seat post clamp and it has finally deteriorated. Unfortunately I cannot source the rubber washer either. Can anyone help me? Thanks
Danielle