They have motorcycle parking at the Dallas campus. It's on the South side of the church, by an entrance. I ride and park there. I would imagine you could park your bike there too.
If you mean bicycles, there's a major bike path that runs along the perimeter of the church campus. It goes all the way to White Rock Lake, up to some place in Far North Dallas. It's only about a mile and a half from the Forest Lane DART station.
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