What is the minimum spec?
The minimum recommended spec is 1GHz with a recent graphics card, but it may run on lower spec PCs than that, so try it and see. AMD Athlon XP 2000+/256MB+ DDR/GPU with hardware vertex shading support is adequate for goodish LFS experience, any slower than that and you’re going to have FPS problems with full field online races and more than 8 AI-players.