For installing a Praxis M30 Spindle based Road crank into a 386EVO ROAD FRAME. INSTRUCTIONS VIEW MANUAL HERE PRODUCT M30-386 EVO BB - For use with Press Fit 386EVO Road frames. See photos above! BUY THIS IF : You are installing a Praxis M30 alloy spindle crank into a Press Fit 386EVO road frame. MEASUREMENT PF 386EVO = 46mm Diameter / 86.5mm Width Helpful frame shell guide here BEARINGS Cartridge Steel or Ceramic 30mm Drive/ 28mm Non-Drive Ceramic Bearings are Grade 5 / ABEC 5 rating 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 Instructions link above. MFG Inject molded cups for this Press Fit 386EVO AVG. WEIGHT 104g