20x2.125 Studded Knobby BMX Tire by Duro - Black 12" This bottom bracket is designed

This bottom bracket is designed to convert old school 1 piece cranks (OPC) to sealed bearings

Posted Weight: 10

and the sealed premium bearings are both serviceable and replaceable

This straight seat post has a 7/8" top and will fit many old school Schwinn bikes and some odd BMX bikes

This bottom bracket is a 22mm and fits Spanish BB Frames

20x2.125 Studded Knobby BMX Tire by Duro - Black 12" This bottom bracket is designedThis is one (1) Duro Studded Knobby Tread Pattern Tire. This tire tread pattern is HFT 851. It is very similar to the type of tires that were used on many bikes made in the late 70's and early 80s. Note: This tire DOES NOT have metal studs. "Studded Knobby" is the tread pattern. Color: All Black Note: We ship tons of tires, and we do ship them folded in a figure 8 unless a request is made to have them shipped flat. If requested, an additional shipping