This is our M30 BB for installing a Praxis M30 crank into a BB86 Road frames, a BB90 MTB frame or BB92 MTB frame. SPECIFICATIONS INTRUCTIONS ⚠️ VIEW MANUAL HERE PRODUCT BB PF41mmThis one press fit BB is used for many frame types that have a 41mm DiameterSee list below in measurements. BUY THIS IF : You are installing a Praxis M30 alloy spindle crank into bicycle frame with a press fit 41mm bore, and has the measurements below. FRAME SPECWIDTH & USE ⚠️This one BB is used for these frame types that have a 41mm Diameter :BB86 - ROAD & BMX | 86.5mm WidthBB90 - MTN ONLY | 89.5mm WidthBB92 - MTN ONLY | 92mm WidthBB104.5 - DH MTN | 104.5mm WidthBB107 - DH MTN | 107mm WidthHelpful frame shell guide here BEARINGS Steel press fit with integrated bearing. New Ceramic Option now Avail!30mm DRIVE / 28mm Non-DRIVE TOOL ⚠️This specific M30 BB is a press fit. Use BB 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. MFG Unique precision ground steel integrated design in which the bearing race and carrier are all in one. AVG. WEIGHT 65g NOTE Praxis M30 bottom brackets have a 30mm Drive and a 28mm NonDrive Bearing. These are specifically made for use with our Praxis M30 spindles. A drive-side wave washer is used for preload of the bearings. MSRP: $61.69 - Steel $219.99 - Ceramic
