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TheBikeTube
Shimano Ultegra RD-6870 Stroke Adjust Bolts
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Ultegra Di2 rear derailleur recently replaced - should the silver screw be this far out/ loose? What does it adjust? : r/bikewrench
DI2 Alignment/Tuning Your Electronic Shifting System Part Two - YouTube
SHIMANO ULTEGRA Di2 Rear derailleur SHIMANO SHADOW RD 2x12-speed | SHIMANO BIKE-EU
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Shimano Dura-Ace Di2 RD-R9250 Guide Wheel Gauge
