DetailsMegaExo:~ FSA's original line of outboard bearing bottom brackets now comprise a wide range of BB's for all uses. Road, mountain and tandem, MegaExo 19 fits FSA cranks with 19mm spindles. Quad BB's have 4 bearings for FR or DH use.
- • Oversize cartridge bearings
- • Forged and CNC machined external cups
- • Composite center sleeve w/double o-ring seals