User Manual
Assembly 3
19
19
Figure 3.6
Figure 3.5
AachingaThreadlessStem
Important! Do not disassemble the headset or lose any parts.  
Be sure the end of the fork is on the ground or being held with 
your free hand, because once you loosen the top cap the fork 
assembly may fall out of the frame.
❶  Turn the front fork to face forward (ie: the fork dropout is in 
the furthest forward posion). Figure 3.3
❷  Using a 5 mm Allen wrench loosen the top cap bolt on the 
steerer tube and remove the top cap and bolt. Important! 
Do not remove the spacers. Figure 3.5
❸  Posion the handlebar assembly over the steerer tube.  
Look at all the cables to be sure they run in a smooth arc 
from the shier or brake lever to the front brake or cable 
stop on the frame. Important! If they are twisted or kinked, 
the shiing and braking will not work. 
❹ While holding the fork assembly in place, use a 6 mm Allen 
wrench and loosen the stem pinch bolts. Slide the handlebar 
assembly onto the steerer tube. 
❺  Align and center the stem to the fork and wheel. Tighten the 
stem pinch bolts unl there is no play between the stem and 
stem tube. Note: There should be a 3 to 5 mm (1/8" - 3/16")
gap between the top of the stem and stem post. Figure 3.6
❻  Place the top cap onto the top of the steerer tube. Insert 
and tighten the top cap bolt until it is snug. Do not over 
tighten. 
❼  Using a 5 mm Allen wrench ghten the top cap bolt. Do the 
following checks to determine if the headset is properly set. 
Tighten or loosen the top cap bolt if necessary.
•  Li up the front wheel of the bicycle, if the wheel does 
not move freely le to right the headset is too ght.
•  Hold the handlebar, close the brakes and rock the fork 
back and forth. If you hear a knock or clunking sound the 
headset is too loose.
 Note: If needed, see Secon 4: Adjusng the Headset for 
more detailed informaon. See Secon 4: Adjusng the 
Handlebar for informaon on aligning the handlebar. 
Stem pinch 
bolts
3
2
Top cap 
and bolt
1/8" - 3/16" 
(3 - 5 mm)
5
5










