ISIS is a splined interface bottom bracket/crank design used by Truvativ, FSA, Raceface and other brands.

• Aluminum cups require TruVativ or compatible installation tool
• Heat-treated thick-wall chromoly spindle handles the abuse of downhill riding
• Precision full-complement sealed cartridge bearings
• M12 crank bolts included (unless noted)
• Defined Color: Black
• Bottom Bracket Shell I.D.: 1.37
• Spindle Length: 113
• Spindle Interface Type: ISIS
• Weight: 344
• BB Shell Width (mm): 68
• BB Shell Width (mm): 73
• BB/Frame Interface: English