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 chromoly spindle for high stiffness and moderate weight Precision full-complement sealed cartridge bearings M15 crank bolts included Three bearings with two on drive side for extra life
| Bottom Bracket Shell I.D. | 1.37 |
| BB/Frame Interface | English |
| BB Shell Width (mm) | 68, 73 |
| Weight | 243 |
| Spindle Interface Type | ISIS |
| Spindle Length | 108, 113 |
| Defined Color | Black |
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