Infinity Quantum Dual Suspension

Purchased this bicycle new from Costco approximately 10 to 12 years ago. Have not ridden it in the past few years and am not wanting to clear it out. Bike is in used condition with some scratches and chips, but no significant dents / bends in the frame. Rims were trued a few years ago and tires have good amounts of tread on them still (replaced the rear one some years ago).

Front suspension is RST 321 I believe, and I serviced it replacing the grease 5 years ago or so. Works well. Rear suspension is unknown manufacturer and does not work all that well, but it does provide some cushioning compared to a hard tail frame.