While pulling power from the bike’s main battery via e-tube cable port, the cable delivers a stable power supply and connectivity with the drive unit, eliminating the need to carry a separate back-up battery specifically for the rear derailleur. The rd-m6260 paired with the 10-51t cassette delivers the range and features that all riders can appreciate. Key features:direct wired: rd-m6260 pulls power from your existing e-bike battery to deliver a constant supply of shifts. Robust design: a wide link structure, skid-plate design, durable aluminum plate and solid pulley add robustness and longevity. Rd protection function: the new automatic impact recovery function instantly returns the derailleur to its original position after impact. Shimano shadow es: a slimmer, stronger evolution of shimano’s pioneering chain-stabilizing shadow rd concept. Fast shifting and robust design: durable deore xt derailleur paired with the hyperglide cassette delivers fast and precise shifting underload experiences available. E-bike technology: intelligent auto shift sensors and hyperglide technology provide smooth, quick gear changes while you pedal so you are always in the right gear. Auto shift e-bike technology: intelligent auto shift sensors and hyperglide technology provide smooth, quick gear changes while you pedal so you are always in the right gear. Free shift e-bike technology: keep your speed and shift whenever. Free shift technology allows you to shift as you coast on flats or downh...