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

36 Drivetrain Speeds 12 Round or Oval Round Offset 3 Material Aluminum Color Black Defined Color Black Direct Mount Type Direct Mount SRAM 3-Bolt

Sealed stainless-steel Hellbender bearings

Compatible with a Brompton front light dyno light and front reflector

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