Problem Solvers BB30 / PressFit 30 Bottom Bracket Adaptor for 24mm Cranks Body Care_Body Wash They feature a brake track

They feature a brake track vent design for smooth

Lightweight (less than 40g heavier than standard crankset)

9200 derailleurs will require the new included derailleur body washer

MMC with InsideOut construction

Problem Solvers BB30 / PressFit 30 Bottom Bracket Adaptor for 24mm Cranks Body Care_Body Wash They feature a brake trackProblem Solvers BB30 PressFit 30. These adapters kit allow for the use of external bottom bracket crankarms (24mm spindles) with BB30 and PressFit 30 bottom bracket bearings. Spacers fill the gap between the 30mm ID of the bearings and the 24mm OD of the spindle. Included spacers allow for fine tuning of chainline and bearing load. Includes crankset specific spacers to fine tune adjustments for Shimano Hollowtech II, Race Face X Type, and FSA MegaExo