NOTE: AFter you set the ”Critical Measurement,“ you will be left with a certain amount of room between the triple clamps for your
bike's headtube and the headset. You will need to know the headtube length and the headset stack height to find this measurement.
This is VERY IMPORTANT! The maximum amount of room between the triple clamps for our Chubby and Chubby LT forks are:
Dim B:
Standard Size
Long Size
Example:
Headtube Length
125mm
+
Chubby / Chubby LT
156mm
191mm
Headset Stack Height
27mm
Total Height
152mm*
* In the example above, this combination will fit a
Chubby or Chubby LT Standard
size fork.
Step #3 - Install the crown race seat and steerer tube.
1.
Make sure that the crown race for your threadless headset will fit onto the crown race seat on the Chubby steerer
tube. The crown race should have an inside diameter of 30.0mm (1 1/8“ Standard). The crown race should be slightly
smaller than the crown race seat so that a press-fit is required to set the race firmly onto the fork.
2.
Make sure that the lower triple clamp is sitting flush with the lip on the bottom of the steerer tube
. If it is
not, loosen the steerer clamp bolt and slide the steerer up until the bottom lip on the steerer is against the bottom
side of the lower triple clamp. Retorque the steerer clamp bolt to 85 in-lbs.
3.
Slide the crown race onto the steerer tube and install the race using a slide hammer or other race installation tool.
4.
Inspect the race and make sure that the bottom of the race sits flush with the crown race seat on the lower triple
clamp and that the race is firmly in place.
Step #4 - Install the fork.
1.
Slide the steerer tube into the headtube of the bike and, while supporting the bottom of the steerer tube and lower
triple clamp with your hand, slide the upper cup or race of the headset onto the steerer.
2.
Route both derailleur and rear brake cables between the two triple clamps and in between stanchion
tube and head tube.
CAUTION: DO NOT route cables outside of fork legs. Loss of control and serious injury may result. Always
route cables between fork leg and head tube.
3.
Slide the upper triple clamp onto the steerer tube and the stanchion tubes and temporarily tighten the
steerer cinch bolt. Important! Do not cut the steerer tube at this point.
Headtube / Headset
Measurement - Dim B
Dim B
!
Proper Steerer Tube
Installation
Install steerer and fork
Crown Race
Installation
Proper Cable Routing
4
