Good call. A SC Superlight's frame is about a pound heavier than the Litespeed but it's a cheaper frame so you could upgrade all components with lighter parts and still come in under the $4k mark. I saw that the frame with a Float R rear shock and their XTR parts kit with a Fox 100RL fork will put you at just about $4,000. I don't know the exact weight of the entire package but I'd imagine it'd be around 25 lbs.