Note: Ships in 3-4 business days. Delivery time depends on the shipping method chosen at checkout. The Box Two Oversized 30mm Bottom Bracket is built with Box Oversized Technology to minimize lateral deflection and maximize pedaling stiffness. Its larger 30mm cross section makes room for generously sized ABEC-5 bearings with greater contact area, so more of your pedaling power reaches the rear wheel. The result is more efficient power delivery and instant acceleration response, designed to mate with the M30 line of oversized cranksets. Features: Oversized Technology Large diameter Precision ABEC-5 sealed bearings Stable outboard bearing position Specifications: Process: Forged and CNC-Machined Cups Material: Cups: Alloy; Sleeve: ABS Plastic Finish: Hard Anodized Spindle Type: Box/Praxis M30 only Shell Width: 68mm/73mm Compatibility: Shell: BSA (Euro) Threaded; Spindle: Box One M30-M, Box Two M30-P Weight (+/- 5%): 110 g / 3.9 oz
