Our ingeneous BB30 to BB24 converter BB which allows the installation of conventional BB24 cranks in BB30 frames. Using our new, non-contact labyrinth seals, ROTOR has been able to achieve a buttery-smooth feel along with unparalleled protection against dust, water and mud. Available only with steel bearings, in black. Compatible with all conventional BB24 cranks manufactured by ROTOR, Shimano and Shimano-compatible brands.
Available in both Road and MTB sizes, weighing 118g for road and 120g for MTB.