AITA BB86 EVO386 (PF4130) Ceramic Bottom Bracket
AITA BB8630 (PF4130) ceramic bottom bracket provides the opportunity using EVO386 30mm spindle cranks on a BB86 41mm ID frame.
As same as the other AITA ceramic bottom brackets, this BB8630 (PF4130) ceramic bottom bracket is an integrated unit that requires no adapter or spacers.
With the grade 3 Si3N4 ceramic balls (8 times rounder and 4 times smoother than the steel’s), spinning on the hardened ABEC 7 races, this ceramic bottom bracket only consumes 21% of the power compared with a Shimano Press Fit bottom bracket in average, plus the bearings will last 3-5 times longer.
2 year warranty.
Free shipping worldwide.
CNC aluminium external BB cups;
ABEC7 high chrome vacuum degassed bearing steel races with quenching and tempering hardening;
Grade 3 Si3N4 ceramic bearing balls;
Nylon bearing retainer;
Dual lips light contact rubber bearing seals;
Press fit BB86 standard frame;
Shell inner diameter 41mm and width 86.5mm;
EVO386 30mm spindle cranksets.