In other disciplines and dictionary definitions, filterable means just the opposite: the material passed by a filter, usually called Total dissolved solids or TDS. Thus in chemistry the non-filterable solids are the retained material called the residue.
The cost for a Redline BMX bike differs based on which model and year is preferred. The current line of Redline BMX bikes consists of 34 different bikes. There are three categories that these bikes fit into: racing, freestyle and youth. These range in price from a MSRP of $2,599 for the Redline Flight Team Carbon Pro XXL/XL 20 to the Redline Raid 16'' with an MSRP of $225.
2000-4000 dollars. This is very average though. It would depend on if you are buying it used or new. Other things it would depend is condition, brand, seller, and the parts they put into it. I would say if you are buying a quality dirt bike new it would cost anywhere between 2,000-14,000 dollars. Used would probably be anywhere from 500-9,000 dollars. There are more expensive ones but this is for a quality dirt bike, not an extremely professional dirt bike.