Shimano SM-BBR60 Ultegra Hollowtech Threaded Bottom Bracket 68/70 Shell Width Size_29 PRE-CURVED MICROFIBER

PRE-CURVED MICROFIBER

with or without socks

Lightweight and fast

or (2) use the silicone sleeve and mount with zip ties

Shimano SM-BBR60 Ultegra Hollowtech Threaded Bottom Bracket 68/70 Shell Width Size_29 PRE-CURVED MICROFIBERSHIMANO ULTEGRA Threaded Bottom Bracket 68 70 mm shell width SM BBR60 SHIMANO ULTEGRA Bottom Bracket Threaded HOLLOWTECH II 68 70 mm shell width With reliable SHIMANO bearings and seals, the SHIMANO ULTEGRA bottom bracket has a long service life. PRODUCT SPECIFICATIONS MODEL NO SM BBR60 SERIES SHIMANO 105 5800 Series Average weight 77 HOLLOWTECH II bottom bracket_Threaded bottom bracket type Small ball bearing Threaded bottom bracket shell width