Diamondback 2013 Mason Bike Frameset, Raw Seat Post: KindShock Drop Zone 125mm dropper seat post w/remote 30.9mm Mason 29-Inch All Mountain 6061-T6 Weapons Grade Aluminum w/formed Top Tube Headset: FSA No57 Taper 1.5 / 1 1/8" Alloy cups, Sealed Cartridge Saddle: DB MASON Signature saddle Extras: Owners' manual, Chainstay Protector, H20 Mounts Seat Post: KindShock Drop Zone 125mm dropper seat post w/remote 30.9mm