A quiet, heavy-duty fix for creaky BB86/92 press-fit frames on Shimano-style 24mm cranksets. Enduro's Maxhit bearings act as their own cups, and the TorqTite halves thread together inside the shell.

Highlights

  • Maxhit TorqTite design: the stainless bearing cups thread together inside the press-fit shell for a secure, creak-free fit
  • Room for much larger balls, giving more than double the load capacity of aluminium-cup bottom brackets
  • Machined and ground entirely from 440C stainless steel
  • Proprietary double-lip groove seals packed with Enduro's high-pressure grease
  • A selection of seals and spacers included for installation
  • Limited Lifetime Warranty, kept with an annual clean and re-grease

How Maxhit works

Most bottom brackets carry their bearings in separate aluminium cups, and every joint between cup, bearing and frame is a place for a creak to start. Maxhit merges bearing and cup into a single 440C stainless component, and the TorqTite version threads its two halves together inside the shell for a simple, secure, creak-free installation in non-threaded, press-fit frames. Dropping the extra cup frees up space for much larger balls, which is where the load capacity comes from.

Servicing and fitting

Enduro asks for an annual service by a qualified mechanic: clean the bearings and re-grease them with Enduro Speed Grease (GR-011) to keep the lifetime warranty. Enduro lists the BRK-BKSM 24 rebuild kit for servicing this bottom bracket.

Our Marrickville workshop can install this bottom bracket and carry out the annual service. Fitting is a separate workshop service and is not included in the price.

Tools Enduro lists for installation

  • BBT-44x16-24 Pro Cup socket tool (44mm x 16-spline, Shimano / 24mm spindle)
  • BBT-010 bottom bracket flat wrench, to hold the first cup while you torque the second against it
  • BBT-001/B Shimano crank arm fixing bolt tool, for use with a torque wrench
  • BRT-060-MH press rod and handle set with BRT-040-24MM and BRT-040-BB86/92 for bearing removal and installation
  • GR-009 Enduro MAX bearing grease

Compatibility & fit

  • Bottom bracket shell: BB86/92 (41mm), 86–92mm wide
  • Crankset spindle: Shimano / 24mm
  • Tool interface: 44mm x 16-spline
  • For non-threaded, press-fit BB86/92 shells
Enduro covers Maxhit bottom brackets with a Limited Lifetime Warranty against corrosion, wear and manufacturing defects. Cover depends on an annual service by a qualified mechanic, cleaning and re-greasing the bearings with Enduro Speed Grease (GR-011); skipping it voids the warranty. Damage from dirt intrusion, contamination or improper installation is not covered, and cover applies to the original owner with proof of purchase. For warranty support, return the product to Tune Cycles and we'll manage the claim with Lusty Industries, Enduro Bearings' Australian distributor.
  • Maxhit TorqTite design: the stainless bearing cups thread together inside the press-fit shell for a secure, creak-free fit
  • More than double the load capacity of aluminium-cup bottom brackets
  • 440C stainless steel, machined and ground
  • Double-lip groove seals with high-pressure grease
  • A selection of seals and spacers included for installation
  • Limited Lifetime Warranty with annual service
Enduro part numberBKSM-8122
DesignMaxhit TorqTite press-fit bottom bracket
Bottom bracket shellBB86/92 (41mm)
Shell width86–92mm
Crankset spindleShimano / 24mm
Tool interface44mm x 16-spline
Bearing material440C stainless steel, machined and ground
SealsDouble-lip groove seals
IncludedSeals and spacers
Service greaseEnduro Speed Grease (GR-011)
Rebuild kitBRK-BKSM 24
WarrantyLimited Lifetime (annual service required)
SKU LUS-EBBBBKSM8122
Barcode # 195947000807
Brand Enduro Bearings
Shipping Weight 0.3000kg
Shipping Width 0.160m
Shipping Height 0.060m
Shipping Length 0.220m