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Thanks to the smooth operation of these components, gear changes are quick and precise. This allows the speed to be easily adapted to the road conditions, minimising the risk of accidents and ensuring driving comfort.
SHIMANO's Double Servo technology is an advanced system that allows the rear derailleur to shift in an optimal manner. This system automatically adjusts the position of the derailleur guide wheel, bringing it closer to the gears during gear changes, whether shifting forwards or backwards. This ensures that every gear change is extremely precise.
Shimano rear bicycle derailleur RD-M3020 7/8rz black
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