- 7075 aluminum thread ring and spacer preload collar for adjusting tension on bottom bracket bearings for 30mm and DUB spindle cranks - Fits: eeWing 30mm spindle, Race Face Cinch 30mm spindles, SRAM 30mm spindle, SRAM 28.99 Dub spindles - 30mm and 28.99mm threaded inner rings included. Use silver thread ring for DUB cranks. Use gold thread ring for 30mm cranks - Grade 5 titanium 2.5mm hex fastening bolt
