Joined: Dec 2004
Posts: 1,509
Likes: 0
From: Quahog, RI
Bikes: Giant TCR Comps, Cdale R5000, Klein Q-Pro, Litespeed Siena, Piasano 105, Redline Conquest Pro, Voodoo Bizango, Fuji Aloha
9s and 10s work interchangeably. Sure, the outboard bearing BB come about with the 10 speed upgrade, but I've used outboard with 9 speeds and Octalink with 10 speed. Anything else is just marketing munbo jumbo.