These brushed permanent magnet DC gearmotors have a rated speed of 268 RPM and a gear reduction of 1:19. They work great on our robots as well as your own applications. These are excellent geared motors for robots.
This is a MLT-JR tracked robot platform and is equipped with 32mm motors, a motor controller, and Spektrum remote control. This robot is a prebuilt version of TP-220-001, and can handle up to 10lbs of additional payload/speeds up to 85 feet per minute.