Praxis has been making high precision, high-performance bottom brackets for years and this is no exception.

The M30 family of bottom brackets have a 30mm drive bearing and a 28mm non-drive bearing for compatibility with Praxis M30 Based Cranks.

Style: The bearings are pressed directly into the BB shell. The outer bearing race is also the outer press-fit surface.

Shell Width: This BB is used for many different frame types that have a 41mm Diameter:

• BB86 (86.5mm Width) Road & BMX
• BB90 (89.5mm Width) MTB
• BB92 (92mm Width) MTB
• BB104.5mm Width DH MTB
• BB107mm Width DH MTB

Spindle Size (Diameter): 30mm drive side, 28mm non-drive side.

Bearing Style: Unique steel cartridge bearing design in which the outer bearing race is also the outer press-fit surface.

Bearing cup material: The large 30mm spindle means that there is no room for bearing cups with a 41mm press-fit BB shell. This design presses the bearings directly into the BB shell with the aid of a retaining compound.

Tools Needed: Bottom bracket bearing press required for installation. Park Tool BBT-30.4 required for bearing removal.

Crank compatibility: Praxis M30 based cranks only.

• Praxis M30
• Infocrank M30
• Box BMX M30
• Oval M30