Leader 516H. here is the manufacturer description - "Leader 516H MTB Frame
The Leader 516H MTB Frame is ideal for the weekend warrior or for the competitive NORBA veteran. Bomb-proof design and good old fashioned Leader Bike know-how brings you this elegant rock of a frame. Comparable to frames in typical $1000 retail bikes, we bring you a great frame at a great price. The Leader 516H MTB Frame features many improvements using double butted T6 tubing in recent years have allowed us to offer you this best buy." I'm looking for a good bike to race with, but without breaking the bank.