M30 THRU – BB86/BB90/BB92


SKU: 86-4201W Categories: ,

This is our M30 THRU BB for installing the Praxis LYFT crank into BB90 or BB92 MTN frames.  It is also good for other brand 30mm cranks like SRAM, RaceFace/Easton “Cinch” cranks, Rotor Rex/3D+ cranks, and CaneCreek eeWings.  See full spec and notes below.



  • For installing Praxis LYFT crank into BB90 or BB92 MTN frames
  • Also good for RaceFace/Easton “Cinch” ,  Rotor Rex/3D+ cranks, and CaneCreek
  • BB86 is for ROAD  |  BB90 or BB92 MTN setup
  • 30mm Drive / 30mm NonDrive | Steel cartridge bearings
  • Road spindle: 103mm or longer for BB86 road frame shells
  • MTB spindle: 108mm or longer for BB90/92 MTB frame shells

VIP NOTE : The M30-THRU family of Praxis BB’s can be used with other brand cranks.

Square M30 Hand


FRAME TYPE : This specific M30 bottom bracket is made to be installed in a BB86 Road frame, or a BB90 or BB92 MTN frame.

BEARINGS : Praxis M30-THRU bottom brackets have a 30mm Drive and a 30mm NonDrive Bearing.       

TOOL : This specific M30 bb 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. Please read the instructions carefully for installation.

You must read and follow the crank instructions that came with your specific brand and model of crank to determine the correct setup.  Praxis provides 2mm dust covers for each side as base setup, but every brand has its own specific crank setup.  You man need additional spacers depending on your brand crank. So please follow your brand’s instructions.

SPINDLE – 103mm or longer for Road | 108mm or longer for MTN





Praxis warrants components to be free from defects in materials or workmanship for a period of 2 years after original purchase to the original owner. 

However, there are limitations such as normal wear and tear…as “nothing lasts forever” so please read our full Warranty.



PROCESSING –  Orders placed after 12:00pm M-F are processed/shipped the next business day.  Also, any orders placed over a weekend or holiday will be processed and shipped the next business day.  We ship with Fed Ex and charges are calculated in your shopping cart at checkout.

30 DAY / RETURNS – At Praxis, we are a core group of riders that believe you should be completely satisfied with the purchase you have made. Should an item purchased through the Praxis Online Store fail to meet your expectations, we will gladly accept its return within 30 days of original purchase date.  WEB RETURNS