NINER ENCYCLOPEDIA
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SPECIFICATION & SETUP GUIDE
32
: Updated: SEPT 5, 2012
RUNNING YOUR S.I.R. 9 OR AIR 9 CARBON AS A GEARED BIKE
Your S.I.R. 9 or Air 9 Carbon frame came shipped to you with the rear SS
insert piece installed in the right side drop out. This alloy piece is designed
to be used with the frame when running it as a singlespeed so there is
no ugly derailleur hanger cluttering up the otherwise sleek look of a frame
without gears, derailleurs, or cables.
When running the S.I.R. 9 or Air 9 Carbon as a geared bike, the
singlespeed insert piece will need to be exchanged with the correct
derailleur hanger (Included with the S.I.R. 9 frame, included with the Air 9
Carbon geared kit)
Derailleur hanger installation is simple. Change the hanger out so that you
now have a place to bolt your rear derailleur.
For the SIR 9 only, the BioCentric position needs to be adjusted for geared
riding. Set the BioCentric to 3:00 (when looking at the bike from the drive
side, or right, of the frame). This is the forward-most position. This ensures
that the front derailleur achieves the best possible alignment with the
chainrings.
Cable routing for the S.I.R. 9 is under the downtube. Use the provided
clamshell cable mounts (F1) to secure the housing on the underside of the
downtube. Each mount will consist of two pieces that cradle the housing
and bolt that attaches to the downtube to hold the housing securely in
place. The housing passes underneath the bottom bracket shell and is
held in place with another mount that is used for both pieces of derailleur
housing and the rear brake line (F2). The front derailleur housing routes
upward to the front derailleur housing stop. The rear housing runs along
the bottom side of the drive side chainstay and can should be secured
using a zip tie at each end of the chainstay and with the provided Velcro
chainstay protector.
Instructions for running gear housing and cables for the Air 9 Carbon are
provided in the following section.
F1
F2
