Transmission bracket along with the rear transmission, threaded on it, must be parallel to the rear gear, which is the basis for smooth running of the chain and for a fast, efficient shifting. If the bicycle falls on the right side, damage to the rear transmission and deformations of the transmission bracket often occur. This causes the loss of the transmission bracket parallelism, which hinders proper functioning of gears. When performing repair work, first the rear wheel must be centered because an alligned rear wheel is the basis for the adjustment of the transmission bracket.
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