Regulation of iron absorption and transport. Iron for use in synthesis of heme, iron-sulfur centers and other non-heme iron proteins is obtained from the diet and via release of recycled iron from macrophages of the reticuloendothelial system that ingest old and damaged erythrocytes (red blood cells).
Four-stroke oil is more like the oil used in cars but both 2-stroke and 4-stroke oil serve the same purpose - to keep the engine lubricated. Four-stroke dirt bike oil comes in a variety of weights like 10w-40, 20w-50 and so on. It is not mixed with gas.
KTM sees a gap in between 125 cc and 250 cc two-stroke dirt bikes and thatâs what the 200 XC is here to fill in with a successful combination between lightness and agility with serious get up and go.hatâs best about the 2009 KTM 200 XC is that the price is in accordance with the bikeâs position in the Austrian lineup so weâre dealing with a quite possible best bang for the buck candidate.