ANyone know a website or palce I can get cheap parts? I have a broken derrailer, it was plastic, and I don't feel like buying a new bike. Is there a place I can buy a BACK derraileur, plastic, or metal, for a cheap price?

I ride lots of trails and hills and off-road terrain...and an occasional jump or two.

specifically the gt avalanche 2.0 '05
* i need the '05 gt avalanche 2.0 disk specs
the '05 gt avalanche 2.0 disk specs, to be specific
Whoops. messed up w/ the details

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I got a Trek 8000 Police bike in a government auction. The only thing it needs is new tires and tubes. Tire size is 26 x 2.1 and I can get them at Wal-Mart but the tubes are unlike anything I've seen before. The valve stem is half the size of a regular stem and it has some sort of thing blocking where the air goes in. Wal-Mart only had the regular tubes so should I just drill the hole in the wheel to fit a regular tube or look elsewhere?

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is their any chance i can get a pretty great or decent mountain bike under 200 dollars i am not a expert so i am not planning on buying anything over that amount 400 and above is for more experienced and im wondering where and is their any possiblity i can buy a mountain bike at a store like toys r us or sport chalet or walmart?

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