500 bucks is not very much, and will be difficult to get all the gear you will need for Colonnade as a new rider. You can get a bike on that kind of budget but it's much easier when you know what you are looking for and get dialed into some used deals. And that's what i would imagine you should shoot for.
Try to buy a nice burly used hardtail, with a nice stiff front coil shock. You want a frame that has a forgiving slack head angle, not a skinny light steep head angled frame. You can go singlespeed but if you decide you want to ride in the woods somewhere, and don't want to have to mash all the time, your vibe might involve gears.
Since you are a Seattlelite on a budget, my suggestion to you would be to go down to Recycled Cycles and ask for Andy. He's helped out quite a bit on Colonnade and even if they don't have a bike for you there, he would be a great resource for information on what you could be looking for.
With the economy people who are dumping their older bikes are i'm certain having to unload them for cheap, so it could be a good time to buy. Just make sure you get a bike that is your fit, as there's nothing worse than learning on a bike that doesn't fit you.
Good luck.
Try to buy a nice burly used hardtail, with a nice stiff front coil shock. You want a frame that has a forgiving slack head angle, not a skinny light steep head angled frame. You can go singlespeed but if you decide you want to ride in the woods somewhere, and don't want to have to mash all the time, your vibe might involve gears.
Since you are a Seattlelite on a budget, my suggestion to you would be to go down to Recycled Cycles and ask for Andy. He's helped out quite a bit on Colonnade and even if they don't have a bike for you there, he would be a great resource for information on what you could be looking for.
With the economy people who are dumping their older bikes are i'm certain having to unload them for cheap, so it could be a good time to buy. Just make sure you get a bike that is your fit, as there's nothing worse than learning on a bike that doesn't fit you.
Good luck.