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.
Harley-Davidson Motorcycle Batteries - Popular Models. Thereâs nothing like the open road when itâs just you, your bike, and the wind, but a dead motorcycle battery can bring your adventure to a sudden stop. With a replacement motorcycle battery from Batteries Plus Bulbs, youâll be back on the road in no time. Read more. Your Harley-Davidson battery replacement is designed to meet or beat original equipment specifications for cold cranking amps (CCA), reserve (RC), and ampere hour capacity (Ah).