PF30 OSBB Ceramic Bottom Bracket

AITA PF30 OSBB ceramic bottom bracket is fully compatible with Specialized OSBB standard frame (width 61mm). It is a pressfit bottom bracket to fit PF30 OSBB standard frames with 30mm spindle BB30 standard cranks. Different from a normal PF30 bottom bracket, this PF30 OSBB ceramic bottom bracket comes with 2x3.5mm spacers which add extra 7mm to reach 68mm width that a BB30 standard crank can work on it. As same as all the other AITA ceramic bottom bracket the Grade 3 Si3N4 ceramic balls and ABEC7 hardened steel race are standard.

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.

2 year warranty.

Specifications:
Fibre reinforced polymer bottom bracket 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;

Frame requirements:
PF30 OSBB standard frame with 61mm width
Shell inner diameter 46mm;

Crankset compatibility:
30mm spindle BB30 cranksets;

Weight:
80g

Note: 2 x 3.5 mm spacers is required to build up the OSBB frame to 68mm in order to accept most of cranks. The 3.5mm spacers will come with the bottom bracket.