AITA EVO386 Shimano road ceramic bottom bracket converts EVO386 frame to accept Shimano/FSA 24mm spindle cranksets.
This conversion bottom bracket in an integrated unit to allow a Shimano/FSA 24mm crankset run on a EVO386 frame without any additional adapters 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, AITA's ceramic bearings run much smoother than most of the bearings in the market and only consume 20% of the power compared with the steel bearing, plus the bearings will last 3-5 times longer.
Unique designed dust cover improves the durability of the bottom bracket compared with the traditional Shimano’s design.
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;
EVO386 standard frame;
Shell inner diameter 46mm and width 86.5mm;
Shimano and FSA 24mm spindle cranksets.