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Giro finale
Photo ©: Bettini


SRAM goes big, June 16, 2006

Bearing comparison From l-r: cartridge bearings from a standard ISIS bottom bracket, GXP external bearing BB, and a Howitzer external bearing BB. The oversized dimensions of the Howitzer allow for beefier bearing races and larger ball bearings for greatly enhanced durability.
Photo ©: James Huang/Cyclingnews

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