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Hsc BB30 Ceramic Adapter Bottom Bracket


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Product Description

Shimano is one of the few manufacturers who has yet to embrace a 30 mm bottom bracket spindle standard, and for BB30 frame owners who wish to equip Shimano cranksets, this creates a compatibility problem. With their BB30 bottom bracket adapter cups, HSC presents a high quality, semi permanent solution to this problem. This aluminum adapter cup system, equipped with hybrid ceramic bearings, simultaneously widens the shell and reduces the spindle interface of a BB30 bottom bracket to allow full compatibility with Shimano Hollowtech II cranksets.

For those currently riding Sram or Truvativ cranks, HSC has developed a high quality bottom bracket designed to enhance overall wear life while simultaneously reducing friction. If upgrading your stock BB to a highly performance tuned ceramic option is the next step in your build process, look no further.


HSC BB30 adapters are compatible with either Shimano Hollowtech II or Sram / Truvativ GXP cranksets. Please feel free to contact us directly for technical questions.


To avoid frame damage, we recommend that these BB30 bottom bracket adapters be professionally installed using a proper bearing press.

Product Specifications

Weight, Shimano 45 grams
Weight, Sram 101 grams
Bearings 6805w7 (2) Si3N4 Ceramic Hybrid
Cup Material aluminum
Shell Compatibility BB30 (68mm wide, 42 mm ID)
Crankset Compatibility Shimano Hollowtech II
Sram / Truvativ GXP

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