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

Addit features a second lower mounting tube for positioning panniers lower resulting in more riding and directional stability of the bicycle

Features extra heavy duty wheel holders

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

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)