SRAM X3 Rear Derailleur - 789 Speed Long Cage Black Model=BB7 Mountain Disc Brake }Shimano R180P/S Disc Brake Adaptor

}Shimano R180P/S Disc Brake Adaptor for 180mm Rotor 74mm Caliper 51mm Frame

Axle to Crown Length 594 Brake Type Post Mount 180 Color Black Crown Race 40 Defined Color Black Designed for ebike Yes External Adjustments Low Speed Compression Damping External Adjustments High Speed Compression Damping External Adjustments Rebound Damping Front Axle 15mm Thru x 110mm Lockout Switch None Maximum Tire Width 74 Negative Spring Air Offset 44 Positive Spring Air S

Warmer: Cuff up zipper open

Allows 6-bolt rotors to be used on CenterLock hubs

Handmade in Yorkshire from 100% waterproof textured nylon with a nylon lining and finished with the classic vegan-friendly PU leather Restrap label

SRAM X3 Rear Derailleur - 789 Speed Long Cage Black Model=BB7 Mountain Disc Brake }Shimano R180P/S Disc Brake AdaptorSRAM X3 Rear Derailleur 789 Speed Long Cage Black. Affordable and reliable derailleur is great for repairs and upgrades. Will work with 7 8 or 9 speed cassettes depending on the shifter used 1: 1 shifter to derailleur actuation ratio for precise light action indexing TECH SPECS Rear Derailleur Mount Type 10x1 Standard Rear Der Shifter Compatibility SRAM 1: 1 Cage Length Long Drivetrain Speeds 7 Drivetrain Speeds 8 Drivetrain Speeds 9 Weight 272 Color