Schwinn Abbott Men’s Mountain Bike

I bought this new a week ago, turns out it’s not the kind of bike I need. I lost the receipt and don’t want a store credit. It’s only been ridden once for about 3 miles. Product description below: -Aluminum full suspension frame supplies a durable, responsive ride -Front suspension fork and rear shock help soak up bumps and thumps on the trail -21-speed Shimano EZ-Fire trigger shifters with front and rear Shimano derailleurs for a wide gear range and quick shifts -Front disc brake and alloy rear linear pull brake combine for crisp all-condition stopping out on the trail -Big 29" knobby mountain tires are 2.3" wide and designed for tough riding on varying terrain -Light and strong double wall alloy rims add durability without weighing you down -Tool-free adjustable seat post for easy height adjustments on the go Asking $120 obo!