Full Speed Ahead BB30 to 73mm English Thread Bottom Bracket Adaptor ModelNumber=K4949 Lower guide features Whippersnapper™ technology

Lower guide features Whippersnapper™ technology for retention without moving parts or friction

Asphalt or off-road

Defined Color Black Rings 32 Spindle Interface Type SRAM DUB Chainring BCD Direct Mount SRAM Color Black Chainline/Hub Compatibility 141/148 Boost Hubs Drivetrain Speeds 12 Drivetrain Speeds 11 Drivetrain Speeds 10 Number of Chainrings Chain Retaining Single Crank Intended Use Mountain BB Included No Pedal Spindle 9/16" Crank Length (mm) 175

Color Black Rings 42 Number of Chainrings Single Crank Length (mm) 175 Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 BB Included No Pedal Spindle 9/16" Spindle Interface Type Shimano Hollowtech II Chainring BCD 110 Shimano Asymmetric Chainline/Hub Compatibility 135/142 MTB Hubs Chainline/Hub Compatibility 141/148 Boost Hubs Designed for ebike Yes Defined Color Black

203 Rotor Type Two Piece Pad Compatibility All Pad Compounds Hub/Disc Compatibility 6-Bolt

Full Speed Ahead BB30 to 73mm English Thread Bottom Bracket Adaptor ModelNumber=K4949 Lower guide features Whippersnapper™ technologyFull Speed Ahead BB30 to 73mm English Thread Bottom Bracket Adaptor. FSA BB30 English Bottom Bracket AdaptorAllows conventional threaded bottom brackets to be installed in a BB30 frame; available in 68mm or 73mm Install with headset press(not included) and green Loctite (included) TECH SPECS BB Shell Width (mm) 73