The suspension system is the same as the Gigabike, which was our Full Suspension mountain bike with 5" travel before our latest model the B.I.G. Five. This bike is in great shape! The Front fork has been serviced within the last year and is a Manitou Minute with 140mm travel. It is equipped with a KS Lev Dropper post with external routing. The bike should fit a 6'1" to 6'4" rider, up to 210 lbs.