FSA Platinum Isis Bottom Bracket

All-purpose - strong and stiff bottom bracket make this a good choice for most mountain bike applications. Titanium-nitride coated isis-type spindle and integrated large ball bearing design. Features narrow integrated bearing cups. Chromoly self-extracting crank bolts for easy removal and installation. Fits most current ISIS-Drive ATB crankarms. Note: not suitable for carbon cranks or road cranks.