BB30 Outboard Ceramic Hybrid BB for 24mm Cranks (Shimano) - Black

BB86/92 Installation

Our BB30 Outboard bottom bracket will give you all of the same benefits as our well-loved Outboard style BBs. The two machined aluminum cups thread together ensuring the bottom bracket remains stable in the frame, increasing bearing life, and simplifying maintenance. This means no more creaking, smoother operation, longer bearing life, and really quick bearing replacement.

Specifically designed for installing 24.00mm spindle diameter cranks (Shimano, Etc.) in BB30 (42mm ID BB shell) frames without the need for any adapters.

Note: FSA MegaExo spindles can be between 24.00mm and 24.07mm in diameter. If your FSA spindle is 24.07mm, this BB will not work! Please call us at 800-361-8422 or email us at info@wheelsmfg.com to purchase our FSA 24.07x37 ceramic hybrid bearings separately.

Precision Machined

  • Bearings: Enduro Ceramic Hybrid
  • Color: Black
  • Bottom Bracket/Frame Interface: BB30, Specialized Alloy OSBB
  • Bottom Bracket Shell Width (mm): 68mm - 73mm
  • Bottom Bracket Shell I.D.: 42mm
  • Over Bearing Width: 90.5mm in 68mm wide shell*
  • Crank Spindle Diameter: 24.00mm
  • Weight: 122g
  • Packaged for retail display

* Over Bearing Width Dimensions include supplied silicone dust shields.

Compatible with the following Bottom Bracket Standards (42mm BB shell inner diameter):

  • BB30
  • Specialized Alloy OSBB.

Compatible with 24.00mm spindle diameter cranksets.*

*Note: FSA MegaExo spindles can be between 24.00mm and 24.07mm in diameter. If your FSA spindle is 24.07mm, this BB will not work! Please call us at 800-361-8422 or email us at info@wheelsmfg.com to purchase our FSA 24.07x37 ceramic hybrid bearings separately.

Enduro Ceramic Hybrid Bearings

Enduro Ceramic Hybrid bearings have Grade 5 ceramic balls with ABEC 5 chromium steel races.  Bearings are made from pure Silicon Nitride material with extreme high density from uniform compaction, the micro-structural development of this material during manufacturing is second to none.

Grade 5 Si3n4 Ceramic Balls:

  • High precision balls are within 5/1,000,000″ round, 60% lighter weight, and 7 times harder than steel.

52100 High Carbon Chromium Alloy Races:

  • Vacuum de-gassed process for the purest chromium alloy steel, hardened to R-62, extremely tough and very durable. Polished to a mirror finish for ABEC-5 precision and noiseless movement.

The bearing seals are dual lip, groove type seals rather than standard 2RS types that other manufacturers use; one lip to keep the dirt out and the other to keep the 90% grease fill inside. Bearings are filled both sides with Rheolube grease for the best protection and long lasting set up. Another external seal with dual lips on both sides and made from the best Silicone material guards from water and dirt penetration.

We back them up with a 1 year warranty.*

DOWNLOAD: BB30-OUT CERAMIC HYBRID SHIMANO INSTALLATION / WARRANTY Download PDF File

Life expectancy of Wheels Mfg bottom brackets and bottom bracket sealed bearings depends on factors like frequency of use, environmental conditions and intended use. It is important to maintain bearings to increase lifespan. Please see the section How to maintain sealed bearings for more information.

Extent of Limited Warranty

Wheels Mfg warrants its Bottom Bracket components to be from defects in materials or workmanship for a period of 2 years after original purchase. Bearing warranties are as follows.

  • Enduro Sealed bearings - standard ABEC-3 or ABEC-5. NO warranty.
  • Enduro Sealed bearings - Angular Contact, Angular Contact Ceramic, Ceramic Hybrid or ZERØ Ceramic Hybrid. 1 year warranty against defects in workmanship or materials.
  • Remaining Wheels Mfg Bottom bracket components - 2 year warranty against defects in workmanship or materials.

This warranty only applies to the original owner and is not transferable. Claims under this warranty must be made through the retailer where the Wheels Mfg component was purchased. Original proof of purchase is required.

Limitations of Warranty

This warranty does not apply to products incorrectly installed and/or adjusted according to the respective Wheels Mfg installation instructions/owner manual. The Wheels Mfg manuals can be found online at wheelsmfg.com. Failure to use correct installation or removal tools will result in damage not covered by warranty.

This warranty does not apply to damage to the product caused by crash, impact, abuse of the product, or unusual installations resulting in subjecting the product to excessive forces or loads beyond its design.

This warranty does not apply when the product has been modified.

This warranty does not apply to normal wear and tear. Wear and tear parts are subject to damage as a result of normal use, failure to service according to Wheels Mfg recommendations, and/or riding in conditions or applications other than recommended.

This warranty does not apply to improperly maintained bearings, in accordance with the Wheels Mfg bearing maintenance information found online at wheelsmfg.com

Wear and Tear bottom bracket parts are identified as:

  • Dust seals
  • O-rings
  • Stripped threads
  • Corrosion
  • Bearing races

Exchanging a Wheels Mfg Bottom Bracket

Warranties only apply to the original owner and are not transferable. Claims must be made through the retailer where the Wheels Mfg component was purchased. Original proof of purchase is required. If original retailer is unavailable, exchanges or claims can be made direct to Wheels Mfg. Direct contact is required before shipping back product and original proof of purchase is required. Email us (customerservice@wheelsmfg.com) or call (1-800-361-8422) for a Return Authorization number Freight charges to Wheels Mfg. are the responsibility of the customer.