Want 30mm-spindle cranks in a BB86/92 frame? Enduro's press-in XD-15 solution uses flanged, double-row ceramic hybrid bearings that press directly into the shell, doubling the balls per side for a long-lasting fit in a very tight space.

Highlights

  • Fits 30mm (BB30-style) cranks to BB86/92 frames
  • Flanged, double-row XD-15 ceramic hybrid bearings press directly into the shell
  • Twice the balls per side for more contact area in limited space
  • Grade 5 silicon nitride balls in deep-groove races
  • Includes bearings, centre sleeve kit, outer seals, chainline spacers and aluminium preload adjuster
  • Enduro Limited Lifetime Warranty against wear and corrosion

A tight fit, solved

A BB86/92 shell has just a 41mm inner diameter, which leaves only 11mm to work with around a 30mm spindle. Enduro's answer is a flanged double-row bearing that presses straight into the shell, doubling the number of balls per side to maximise contact area and give a long-lasting result.

XD-15 ceramic hybrid bearings

Enduro's exclusive XD-15 bearings pair ceramic balls with nitrogen steel races, an extra-tough stainless material that won't corrode or rust the way most ceramic hybrid bearings do. Enduro has used XD-15 in cycling for more than 12 years, and where other ceramic bearings roll best on the day they're fitted and decline from there, XD-15 bearings improve over time and become smoother.

What's in the kit

The kit includes the double-row flanged bearings, centre sleeve kit, outer seals, spacers for chainline adjustment and Enduro's machined aluminium preload adjuster. Like most bottom brackets, the double-row design needs precise adjustment, and the preload adjuster suits cranks without a built-in preload system or with a plastic one. No tools are included, and replacement DRF 3041 bearings aren't sold individually for this kit.

Compatibility & fit

For BB86/92 frames with 30mm (BB30-style) crank spindles. Enduro lists its BRT-060-MH bearing press, BRT-040-30MM toolkit and BRT-040-BB86/92 adaptor cup for installation, all sold separately. Our Marrickville workshop can install press-fit and TorqTite bottom brackets with the correct tools. Fitting is a separate workshop service and isn't included in the price.

Enduro Bearings covers its XD-15 ceramic hybrid bearings with a Limited Lifetime Warranty against corrosion, wear and manufacturing defects, for the original owner with proof of purchase. Damage from dirt intrusion or contamination, or from improper installation, isn't covered, and Enduro recommends an annual service by a professional mechanic to keep XD-15 bearings at their best. For warranty support, return the product to Tune Cycles and we'll manage the claim with Lusty Industries, Enduro Bearings' Australian distributor.
  • BB86/92 frame shell to 30mm crank spindle
  • Flanged double-row XD-15 ceramic hybrid bearings
  • Presses directly into the frame shell
  • Sleeve kit, seals, spacers and preload adjuster included
  • Limited lifetime warranty against wear and corrosion
Enduro part numberBKC-7021
TypePress-in, flanged double-row bottom bracket
BearingsXD-15 ceramic hybrid, double-row (DRF 3041)
BallsGrade 5 silicon nitride
Frame BB shellBB86/92
Crank spindle30mm (BB30-style)
IncludedBearings, centre sleeve kit, outer seals, spacers, aluminium preload adjuster
Install tools (sold separately)BRT-060-MH, BRT-040-30MM, BRT-040-BB86/92
WarrantyEnduro Limited Lifetime (wear and corrosion)
SKU LUS-EBBBBKC7021
Barcode # 811780027527
Brand Enduro Bearings
Shipping Weight 0.3000kg
Shipping Width 0.160m
Shipping Height 0.060m
Shipping Length 0.220m