This BB is used for many different frame types that have a 41mm Diameter :
IMG_9389
SPECIFICATIONS
Unique steel design in which the bearing outer race is also the outer press fit surface
30mm Drive bearing / 28mm NonDrive bearing
This BB is used for many different frame setups. See compatibility section.
INSTRUCTION MANUAL
Square M30 Hand
COMPATIBILITY
FRAME TYPE : This BB is used for many different frame types that have a 41mm Diameter :
BB86 (86.5mm Width) ROAD & BMX
BB90 (89.5mm Width) MTN
BB92 (92mm Width) MTN
BB104.5mm Width DH MTN
BB107mm Width DH MTN
TOOL : This specific M30 bottom bracket is a press fit and uses a press tool/drift for installation, and a cup-removal tool for removal. These are very specific tools so talk to your local bike shop if you do not own them. See Instruction link above.