All-new derailleur thats specifically designed and optimized to be motor-driven instead of cable-actuatedAXS powered components enable customization and scale to an individual riders liking via the AXS AppFeatures a shorter cage for 10mm more ground clearance, with more chain wrap on the cassette to sit slightly further forward, and further inboard from mechanical EagleOverload Clutch - In the event of an impact, the motor gearbox disengages, giving the derailleur freedom to move thus resisting damageTested to IP69K water and dust proofing standard for creek crossings, mud splatterings and the resulting post-ride pressure washings**BATTERY NOT INCLUDED - BATTERY PART #530147 - SOLD SEPARATELYX0112sp52LongRedUPC/EAN/GTIN: 710845853524