Bottom Brackets

Extreme BB Ultra

Sale price$165.00 USD
SKU: P4130MC
Category: BB86


Select Spindle (mm): 30

Select Spindle (mm)

Double Ball

The dual-bearing design can handle greater forces and provides both smoothness and durability. Made of stainless steel, it offers better hardness and weather resistance. Additionally, the contact seal efficiently prevents water from entering, prolonging the lifespan of the bearing.

Ceramic Rolling

This technology incorporates ceramic beads with low resistance that are immune to rust, deformation, and bonded with nano grease. These features provide the benefits of reduced resistance, faster running speeds, and exceptional water resistance, surpassing the performance of conventional steel balls.

BB Type Press-fit
Material Stainless
Bearing Type Double
Bearing material Ceramic
In The Box
30mm Spindle 2 Bearings
2 Dust covers
2 1mm Ø30mm spacers
29mm Spindle 2 Bearings
2 Dust covers
2 0.5mm Ø29mm spacers
10 1mm Ø29mm spacers
Item Spec Shell DIA Shell Width Crankset Weight
P4130AC BB86 41mm 86.5-92mm 30mm axle crankset 71.6g
P4129AC BB86 37mm 86.5-92mm Sram DUB -