Headset, Bottom bracket – Specialized Transition Carbon-All Models User Manual
Page 2
 
Warning! Great care should be taken not to damage composite 
materials, including the frame and any composite components. 
Any damage may result in a loss of structural integrity, which 
may result in a catastrophic failure. This damage may not be 
visible in inspection. Before each ride, and after any crash, 
carefully inspect the bicycle for and dents, fraying, gouging, 
scratches through the paint, chipping, bending or any other 
signs of damage. Do not ride if the bicycle shows any signs of 
these signs. After any crash, and before riding any further, take 
the bicycle to an authorized Specialized retailer for a complete 
inspection.
The following illustration highlights all the Transition’s relevant 
geometry measurements and angles.
The following charts outline the measurements for each frame size 
according to the “Reach & Stack” method as well as show the standard 
method using the effective top tube length and seat tube angle.
The Geometry measurements are separated into three charts, one for 
each seat post setback (Zero, Standard, Team).
Recommendations about Tri bike fit and how 
it differs from traditional road bike fit:
• The saddle is typically more forward.
• The saddle position is partly dependant 
on the amount of handlebar drop and vice 
versa.
• Position depends on the rider’s goals,
flexibility, event style and intended riding 
experience.
To optimize the comfort, performance and 
control of the Transition bike, see a qualified 
Tri Bike fitter.
TEAM SETBACK
STANDARD SETBACK
ZERO SETBACK
HEADSET
Your Specialized frame does not require any 
head tube pre-installation preparation. All 
surfaces are already prepared from the factory, 
with the exception of greasing the cups.
Use 36° x 45° x 38mm (1”) cartridge bearings.
No tools are required for the installation or re-
moval of the cartridge bearings.
BOTTOM BRACKET
Your Specialized frame does not require any 
bottom bracket pre-installation preparation. All 
surfaces are already prepared from the factory, 
with the exception of greasing the threads. It 
is acceptable to chase the threads if applicable 
and necessary. Do not face the bottom bracket 
shell surfaces.
THREADED: Ensure that the bottom bracket shell 
threads are clean and greased prior to installation.
Recommended torque is 442 in-lbf (50 N-m).
OVERSIZED BB: Please refer to the carbon 
crank installation guide for assembly 
instructions and compatible tools.
COMPONENT TORQUE SETTINGS
TRANSITION CARBON - ALL MODELS
• Braze-on front derailleur: Recommended
torque is
44 in-lbf (5.0 N-m).
• Rear derailleur: Recommended torque is
 
70 in-lbf (7.9 N-m). Ensure threads are clean
prior to installation.
• Seat collar: Recommended torque is 70 in-lbf 
 (7.9 N-m).
• Downtube (@ BB) Brake Cable Stop:
 Recommended torque is 35 in-lbf (4.0 N-m).
• Water bottle cage: Recommended torque is 
 
35 in-lbf (4.0 N-m).