This Trek Marlin 6 had some moderate use for a few years. I replaced the cassette and chain once during that time, and now they're bad again. The Trek has Tannus Armor in the front and back tires, and the tires are Surly Extraterrestrial mountain bike tires at least a $300 value alone. The orange foam at the seat post is a cushion that's removable, and only tied on. This frame is fully intact with no cracks. The seat has springs to make up for the no shocks in the tail frame. The orange ribbon on the end of the rack is for visibility. The bike frame is ultralight aluminum square tube, which is top of the line. Once you get the bike, you can have the cassette and chain installed at the community CAT bike shop I'm a member at a block away from the place I'll sell you the bike at Broad and Guetter Bus Depot in Bethlehem, PA. You can get the cassette at Amazon for a little over half of the price of the one at the Trek Store. Amazon sells the Shimano CS-M4100 Deore Cassette 10 SpeedShimano CS-M4100 Deore Cassette 10 Speed currently for $53.50. The chain is any 10-speed chain. Currently, the old cassette and the old chain are on it, and it runs, but not well without a new cassette and a new chain. If you reply, please provide a name and phone number. And those who replied asking for a better deal, it's already a better deal. It's $1,000 bike for $400.