Publicado Por En julio 22, 2026 SM-RS500 RS501 Bottom Bracket The RS500 HollowTech II Road Bottom Bracket from Shimano has outboard bottom bracket bearing cups for use with 2-piece cap-free design road chainsets. The minimal bearing interface gives superbly smooth rolling and easy installation. Available in BSA or ITA thread. Feature: Fits Shimano Hollowtech II Cranksets New seal construction BB Shell Width: BSA 68mm, ITA 70mm BB/Frame Interface: choose; English, or Italian Bottom Bracket Shell I.D.: 1.37" (English) Spindle Interface Type: Shimano Hollowtech II Weight: 73 g SKU: SM-RS500 ***These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.***