Box Two 35mm Bottom Bracket

J&R Bicycles, Inc. Verified independent store

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The Box Two 35mm Bottom Bracket is another incarnation of Box’s Oversized Technology design philosophy. Box admits this is a large bottom bracket, but they rationalize the design d ecision, by first moving material from less stressed areas to higher stressed ones, then they use Enduro’s precision bearings to create a near instant response to pedal input. FEATURES B52 Technology ABS Plastic Sleeve BB30 or PF30 Compatible Outboard Bearings Enduro™ Bearings Oversized™ 35mm Oversized Technology™ SPECIFICATION COMPATIBILITY: Box One™ M35 only SHELL: PF30 or BB30 only SPINDLE TYPE: Box/Praxis™ M35 only WEIGHT: 138 grams / 4.9 ounces Show more