Shimano DEORE RD-M6250-SGS DI2 12V rear derailleur

Features :

 -12 speeds

-for 10-51 cassette

-500% gear range

-securely integrated battery

-Impact Recovery function: immediately returns the derailleur to its original position after an impact

-Various

-Weight: 331 grams

-Cage length: long

-Group: Deore Di2

-Model identification number: RD-M6250

-Color/Decoration: black

-Material: aluminum/steel

-Maximum number of teeth: 51

Robust design: The wide link structure, slide plate design, durable steel plate, and solid pulley add strength and durability.

RD Protection function: The new Automatic Impact Recovery function instantly returns the derailleur to its original position after an impact.

SHIMANO SHADOW ES: The slimmer and more robust evolution of SHADOW RD+, SHIMANO's pioneering chain stabilization concept.

Precise and crisp wireless shifting: Ultra-fast shifting and a 500% gear range, without sacrificing anything.

Protected battery: Hidden safely inside an enclosed space, the battery stays put even on the roughest terrain, while remaining easily removable for charging. *Battery sold separately.

Covered pulley and cage: The sturdy pulley and shielded teeth prevent trail debris from clogging the flow.