Press Fit 86/92 Bottom Bracket

$158.00

The White Industries BB86/BB92 30mm Bottom Bracket is designed for BB86 and BB92 press-fit frames with 41mm inside diameter shells. Featuring premium Enduro stainless steel double-row flanged bearings, it delivers exceptional durability, smooth performance, and compatibility with White Industries MR30 and other 30mm spindle cranksets.

SKU: BBI30-BB8692
Category:

Description

The White Industries BB86/BB92 30mm Bottom Bracket delivers smooth pedaling, exceptional durability, and long-lasting performance for modern road, gravel, and mountain bikes. We machine, polish, engrave, and assemble every bottom bracket in our Petaluma, California facility. As a result, every component reflects the precision craftsmanship riders have trusted from White Industries for more than 30 years.

Designed specifically for BB86 and BB92 press-fit frames, this bottom bracket fits shells with a 41mm inside diameterand is compatible with 30mm spindle cranksets. It works seamlessly with White Industries MR30 series cranks as well as many other cranksets that use a 30mm spindle.

What sets this bottom bracket apart is its innovative bearing design. Instead of using standard cartridge bearings, it features premium Enduro stainless steel double-row flanged bearings that press directly into the frame. This design creates space for larger ball bearings while doubling the number of balls supporting each side.

The result is smoother operation, increased load capacity, and significantly longer bearing life. Whether you’re riding long gravel miles, tackling technical singletrack, or logging countless road miles, these bearings are built to withstand demanding conditions.

Every White Industries BB86/BB92 30mm Bottom Bracket is designed to maximize durability while minimizing maintenance. Before ordering, we recommend confirming that your frame uses a BB86 or BB92 press-fit shell with a 41mm inside diameter and that your crankset features a 30mm spindle. Verifying compatibility helps ensure the correct fit and years of dependable performance.

Whether you’re replacing a worn bottom bracket or completing a premium custom build, the White Industries BB86/BB92 30mm Bottom Bracket delivers smooth performance, precision engineering, and American-made quality built to last.

Features

  • Precision CNC-machined in Petaluma, California
  • Designed for BB86 and BB92 press-fit bottom bracket shells
  • Fits 41mm inside diameter bottom bracket shells
  • Compatible with 30mm spindle cranksets
  • Designed for White Industries MR30 series cranks
  • Compatible with many other 30mm spindle cranksets
  • Premium Enduro stainless steel double-row flanged bearings
  • Larger bearing balls for increased durability
  • Double-row bearing design for longer bearing life
  • Smooth, quiet, and fully serviceable performance
  • Made in the USA

Technical Documents

Looking for more detailed technical info? Visit our Technical Documents page here.

Specs

  • 41mm O.D. for “press-fit” into 41mm I.D. “PF86” and “PF92” bottom bracket shells
  • Designed to be used on 86mm or 92mm wide bottom bracket shells
  • Bearings
    • Enduro stainless steel double row
  • Weight/pr
    • 73g
  • Cup width (each)
    • 30mm: 1.5mm
  • Cup lip
    • 1.5mm
  • Min bore depth needed
    • 10mm

Compatibility

  • Designed to be used on 86mm or 92mm wide bottom bracket shells
  • Bearing  fits:
    • 30mm White Industries MR30 series cranks as well as other brands of 30mm spindle cranks
    • Not compatible with square taper style spindles
  • No sleeve included or available for this model
  • Tools: Bearing press for 30mm bearings
    • Available under Tools>Bearing Presses

How many spacers?

White Industries cranks

  • Use 1x 1mm x 30mm spacer (either side) with R30 and G30 cranks on 86mm shells (92mm shells are too wide)
  • Use 2x 1mm x 30mm spacers (1 on each side) with M30 and A30 cranks on 92mm shells
    • On 86mm shells, add one 2.5mm spacer on each side for a total of 3.5mm on each side
      • 30mm spacer kits available under Parts>Bottom Bracket Parts>Bottom Bracket Spindle Spacer Kits

For other manufacturers’ cranks it’s very hard to estimate exactly how many spacers you might need.  Most cranks these days have an adjustable bearing preload collar on them that can accommodate slightly wider/narrower “Outer Bearing Width” (OBW) than their target number, but you’ll need to check with your particular crank’s manufacturer. When in doubt, start with few spacers than you think you need so you don’t crush and destroy your bearings!

What's In The Box

  • Left and right (identical) PF86/92 cups/bearings
  • Includes (2x) 1mm x 30mm spindle spacers
  • No sleeve included or available for this model

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