Shimano Dura-Ace RD-R9150-SS Di2 Rear Derailleur - 11-SpeedMounting Type Braze On Mount Number of Teeth 30 Manufacturer Shimano UPC 689228746435 Item Package Dimensions L x W x H 6 x 4. 6 x 3. 6 inches Package Weight 0. 32 Kilograms Item Dimensions LxWxH 6 x 5 x 4 inches Brand Name SHIMANO Suggested Users mens Number of Items 1 Part Number IRDR9150SS Size One Size Sport Type Cycling

Recommended brake lever             : BL-M4100

Range: 11-28T

The Shimano Nexus CN-NX10 single speed chain

Application area: MTB

Recommended BB_Pressfit SM-BB72-41B

Double or Triple:Triple

Seat Tube Band Mount 28

weight and rotational performance

precise shifting worth of any podium

While filling with premium moisture

CAGE (RD)：Short

Q-factor: 172mm