ERGO CLASSIC EXTRA-SOFT BLACK VINYL 165 MM Dual row flanged bearings used

Dual row flanged bearings used adapt a BB86/92 bottom bracket shell to fit 29mm spindle Sram DUB cranks

Fits some Airborne

Trek: 6-series Madone - 2010-2011 / Cronus CX Pro - 2012-2013 / Cronus CX Ultimate - 2012-2013 / Cronus CX Ultimate Frameset - 2012-2013 / Custom Madone 6 Series - 2012 / Custom Madone 6 Series SSL - 2012 / Custom Madone 6 Series SSL WSD - 2012 / Custom Madone 6 Series WSD - 2012 / Custom Speed Conc

Platform size: 90mm x 68mm

ERGO CLASSIC EXTRA-SOFT BLACK VINYL 165 MM Dual row flanged bearings usedRide in healthy comfort No pain No more numb butt Ride safe ScotchliteTM reflectors on back In compliance with requirements established by N. I. C. S. H. (National Institute of Occupational Safety and Health)