Profile Design TRI STEM User manual
Tri Stem
1
TRI STEM
REVISION 01-04-18-2023
Tri Stem
1
INTRODUCTION
Thank you for purchasing this Profile Design Stem. These instructions apply to the Tri Stem.
Please read these instructions thoroughly before attempting to install this item. Proper installation is required for compliance with Profile Design's
warranty policy. If you are not familiar with installation of Aerobars or their accessories, please seek the assistance of your local Profile design dealer
by logging on to www.profile-design.com and using "dealer search" or by calling Profile Design's customer service number p.# 888.800.5999.
Note to Dealers: If you install this product for the consumer, please provide him/her with this owner’s manual after installation.
Tools and materials required:
• Assembly compound such as Finishline Fiber Grip™
• 4mm Allen key
• Torque Wrench with 4mm Hex bit
Your Stem kit should contain:
• One (1) aluminium stem body with two (2) M5x18 steerer clamp bolts
• One (1) aluminium stem faceplate with four (4) M5x18 bolts
• One (1) aluminium headset compression cap with one (1) M6x30 bolt
• One (1) plastic stem cover with two (2) M3x10 bolts
Tri Stem
2
Optional accessories compatible with this stem:
WARNING: Periodically check the stem for damage that could lead to degradation and weakening of the base material. Replace your stem if you
notice any damage from use or accident.
• Any Profile Design Basebar or Handlebar
• HSF Aeria Bottle
• HSF Aeroflow Bottle
If anything is missing from the Stem kit please contact your dealer.
Tri Stem
32
01
COMPONENT LIST
Tri Stem 105mm
QTY.
Req.
Part.#Ref.# Part Description
1539136Tri Srem 17.5° x 105mm Bk Logo w/ Bolts
1
Tri Stem
4
01
COMPONENT LIST
QTY.
Req.
Part.#Ref.# Part Description
1539137Tri Stem 17.5°x 80mm Bk Logo w/ Bolts
1
Tri Stem 85mm
Tri Stem
54
PART DRAWINGS
(31.8 x 80 mm)
(31.8 x 105 mm)
26 mm
40 mm
57.5 mm
26 mm
80 mm
105 mm
135.7 mm
160.7 mm
57.5 mm
Tri Stem
6
01
02
03
TORQUE SETTINGS
1 Bar clamp bolts M5x18mm 1Nm (8.8 inlbf)
2Steerer clamp bolts M5x18mm 5Nm (44 inlbf)
3 Headset cap bolt M3x10mm 6Nm (53 inlbf)
Ref.# Location Bolt Size Torque
Tri Stem
7
INSTALLATION INSTRUCTIONS
Externally routed headset
1. Install the stem on the fork steerer.
• Ensure the top of the steerer tube is level with or up to 2mm above the top of the stem clamp.
• Fit the included compression cap.
• Tighten the steerer clamp bolts enough that the stem won’t shift during the assembly process.
Note that this is not the final tightening of these bolts.
2. Apply assembly paste to the bar clamp of the stem.
3. This step depends on the style of basebar you are using.
• If the brake cables exit the basebar outside the stem attach the basebar to the stem and tighten
the faceplate bolts so they are snug.
• If the brake cables exit the basebar inside the stem, first route the cables through the bar, then
route them through the stem before attaching the faceplate and tightening the bolts to be snug.
• The front brake cable can be routed outside the stem or into the stem and out through the hole
in the base of the stem body.
4. If using electronic gears, the only way to route the cables into the stem is through the basebar (only
available on Wing Carbon bars and Aeria Ultimate), do this prior to fitting the basebar to the stem.
5. Complete the rest of the aerobar installation then brake and shifter cable setup according to the
manufacturer instructions.
6. Remove the bike from the workstand for final adjustments.
• Tighten the headset according to the headset manufacturers instructions.
• Tighten the steerer clamp bolts on the stem to a maximum of 5Nm.
• Adjust the angle of the basebar.
• Tighten the faceplate bolts to a maximum of 6Nm.
7. Once headset and cable installation is complete, fit the plastic cover over the steerer and torque
the bolts to a maximum of 2Nm.
Tri Stem
8
Internally routed headset
1. Route the brake and gear cables through the frame and out of the headset cap.
2. Install the stem on the fork steerer.
• As you install the stem guide the cables through the two slots in the stem and
out through the bar clamp area.
• Ensure the top of the steerer tube is level with or up to 2mm above the top of the
stem clamp.
• Fit the included compression cap.
• Tighten the steerer clamp bolts enough that the stem won’t shift during the
assembly process. Note that this is not the final tightening of these bolts.
3. Apply assembly paste to the bar clamp of the stem.
4. Install the bar, carefully guiding the cables into the basebar and out to their
appropriate locations.
5. Attach the faceplate and tighten the bolts to be snug.
6. Complete the rest of the aerobar installation then brake and shifter
cable setup according to the manufacturer instructions.
7. Remove the bike from the workstand for final adjustments.
• Tighten the headset according to the headset manufacturers instructions.
• Tighten the steerer clamp bolts on the stem to a maximum of 6Nm.
• Adjust the angle of the basebar.
• Tighten the faceplate bolts to a maximum of 6Nm.
8. Once headset and cable installation is complete, fit the plastic cover over the
steerer and torque the bolts to a maximum of 2Nm.
INSTALLATION INSTRUCTIONS
Tri Stem
98
Option 3Option 1 Option 2
A A A
A A A1B
BB B
1 1 1
B
1
B
1
CABLE ROUTE MAP
Brake Cables
Shifting (Electric Cables)
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