build one to your needs. And welcome to the Forum.

I put together parts from three junk yard or dump ground bikes to get a single speed, basically just an old shimano wheel set on a early model Huffy 10 speed mtn bike frame. With a handle bar set off an old vertical bike.

Good for riding around the streets and trails but not really for off road riding. I have a Diamond back that has enough brakes for me at the speeds i go off road, but I could see where Disk could come in handy.

good luck