The Box One Square Taper Titanium/Carbon Bottom Bracket features precision sealed bearings and cold-forged, aluminum CNC machined cups. It is a three-piece crank in search of performance gains and weight savings. They have hollow, custom titanium-nitride-coated titanium spindles and carbon fiber center seals, helping keep the weight down. Other features include cups that are anodized black with anodized gold inner seals and a JIS tapered spindle that comes in either 108 or 113 millimeters. CNC-Machined Alloy Cups Precision Abec-5 Sealed Bearings Titanium JIS Spindle Carbon Fiber Sleeve Titanium Aluminum Nitride Coating BSA Threaded Compatible Spindle Type JIS Spindle Material Titanium Spindle Length 108mm or 113mm Shell Width 68mm Torque Spec 35-50Nm Thread 1.37" x 24 TPI Weight [108] 185 grams / 6.5 ounces Weight [113] 190 grams / 6.7 ounces
