Shimano Ultegra Di2 RD-R8150F 12-Speed Rear Derailleur

Shimano Ultegra Di2 RD-R8150F 12-Speed Rear Derailleur (Shadow, Top Normal, Direct Attachment) Specifications Series ULTEGRA Model no. RD-R8150 Color 1 Series color Rear speeds 12 RD construction SHIMANO SHADOW RD Yes Applicable derailleur hanger SHIMANO ROAD type Direct attachment (conventional) Yes Direct mount Yes UDH standard Yes Max. front difference 16T Total capacity 39T Low sprocket Max. 34T Min. 30T Top sprocket Max. 11T Min. 11T Fluoric coated link bushings 4 Pulley Guide pulley bearing Yes Tension pulley bearing Yes Teeth 11T Screws material Stainless steel Sunken type pulley screw Yes Bracket Material Aluminum Finish Painted B-axle Hollow axle Yes Material Stainless steel Finish Painted B-axle 2 Hollow axle Yes Material Aluminum Finish Anodized Bracket body Material Aluminum Finish Painted P-axle Material Steel Finish Passivation Plate body Materi