Both pathology have been attributed to damage by free radicals, there has been a great deal of interest in antioxidants. Bilberry's flavonoids are known as potent antioxidants, scavenging free radicals and used for multiple age-related ocular disorders. Thus, bilberry may have health benefits on these conditions.
Tensioner pulleys and idler pulleys keep the belt taut and running smoothly. The accessory pulleys have to spin a certain direction to power their respective parts. This determines whether they ârideâ on the inside or outside of the belt.
1 If derailleur cage is still together, loosen and remove one at a time each pulley bolt. 2  It is common for the upper and lower pulleys to be different. 3  Do not mix parts from upper and lower pulleys.4  Upper pulley may be labeled as âGâ pulley, or simply âupperâ. 5  Note parts orientation of cover plates, seals, and bushing. Rotate cage to expose the cage stop screw. 2  Loosen and remove the stop screw. 3  Cage will now rotate back past the stop screw position. 4  Allow cage to rotate forward and relieve spring tension. 5  Note position of cage to derailleur body in this relaxed position.