ATTENTION: If you have a 2015 and newer Specialized this is likely NOT what you need. Please read below for clarification before ordering this part.

• Info
• Installation Instructions
• Video
• Specifications
• Spacers

• If you're looking for a bottom bracket that will never creak, and spins like mad, you've come to the right place.

  OSBB is Specialized's version of the ever-popular Road PressFit30 Standard, except that it is much narrower. The BBInfinite Specialized OSBB Bottom Bracket module works with all 30mm spindle cranksets on the market, such as the stock FACT/Sworks crankset, Campagnolo OverTorque, and Sram carbon cranks, just to name a few. Our 30mm spindle bottom brackets ship with the special press tools and retaining compounds you'll need. All you need is the press for this specialized OSBB.

  ATTENTION: If you have a 2015 and up Venge, Venge Vias, Tarmac, and many more, you may have cups epoxied into your frame to convert your OSBB Pressfit bike to a BB30 bike. This is no problem. We have a full line of BB30 products for you that covers every crank you want to use.

  If you have a 2015 and up bike with cups epoxied-in, and you have a 30mm spindle crank, click here. If you have a 2015 and up bike with cups epoxied-in, and you have a Shimano crank, click here. If you have a 2015 and up bike with cups epoxied-in, and you have a Gxp crank, click here. If you have a 2015 and up bike with cups epoxied-in, and you have a Campagnolo UltraTorque crank, click here.

   

  ABOUT OUR BEARING CHOICES:
  

  Ceramitech Bearings: Our Si3n4 hybrid ceramic bearings feature ultra-spherical silicon nitride balls matched to SAE 52100 chrome steel bearing races that have been processed with additional heat treatment and polishing steps. The result is a hybrid-ceramic bearing that lasts longer than any steel bearing with spin performance no steel bearing can rival. We’re so confident in the durability of our Ceramitech bearings that we back them with a Lifetime Bearing Exchange warranty. These bearings feature mid-contact seals for extreme performance and endurance. Each bearing comes lubricated with Kluber Isoflex Topas NB52. Lifetime Warranty.

  WS2 Coated Ceramitech Bearings: We took our amazing Ceramitech bearings and added an extremely durable, tungsten disulfide (WS2) coating that has a 0.03 coefficient of friction---which means it’s slicker than Teflon, graphite, and even molybdenum disulfide. WS2 has an affinity for oils and greases, which means it maintains a hydrodynamic layer of lubricant where it’s needed most. The result is astonishing spin performance and increased endurance. These bearings feature mid-contact seals for extreme performance and durability. Each bearing comes lubricated with Kluber Isoflex Topas NB52. Lifetime Warranty.

  ABEC-7 Steel Bearings: Crafted from SAE 52100 chrome steel, our BBInfinite ABEC-7 (ISO 492, Class 4) bearings are so buttery that you’d have to buy our Ceramitechs to find anything better. These bearings feature mid-contact seals for extreme performance and durability. Each bearing comes lubricated with Kluber or Koyo. 1-Year Bearing Exchange Warranty.

• 
• Technical Specifications

  Weight:

  WS2: 94g | CERAMITECH: 96g | ABEC-7 SS: 101g

  Frame Width: 61mm

  Frame Diameter: 46mm

  Spindle Diameter: 30mm

  Bearing Size: 6806

  Ceramitech 6806 | ABEC-7 6806

• Spacers Stack for OSBB-PF-RD

  

  OSBB-PF-RD Road Crank Spacer Chart

  Crank Length(mm)	Spacer SKU
  102.25	Spacer-9.75MM-SET
  106.25	Spacer-12.5MM-SET
  110.75	Spacer-12.5MM-SET