Tube - Head Tube - EC44 / ZS44 - 43.9 x 48 x 950 mm

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P/N: 45292
Available Now: 5

~37.4” ◾ 950mm

P/N: 45292
Available Now: 5
1 - 5
$293.99
6 - 24
$291.79
25 - 49
$249.59
50 +
$227.39
Contact Info
Project Details
Quantity must be greater than 1.
or
Please select a valid length.
Precision of Measurement
Please select a tolerance option.
    • ~0.005 reduction on outer diameter (OD)."
    • This removes the outer cello wrap gloss finish.
    • Sand outer diameter to specified thickness.
    • Patterns will likely distort in appearance
    Please select a value within the allowed range.
    Sanding Tolerance Options:
    Please select a tolerance option.

If you are requesting bulk discounts, cutting, or standard sanding services only, we will send you a cart with your product selections. You may enter your shipping information and purchase directly at that time. Please note, the cart will not allow edits to the quote. Any changes will have to be completed by our team. If we do not have enough information to complete your quote we will reach out to you directly. If you are requesting additional services or custom sanding, a team member will reach out to you to finalize a quote.

If you request a custom length you will be charged for a full length item (or items if more than 1 is needed to meet your request) plus a cutting fee. You will then be shipped the item sized to your specification and any remaining length of the orginal item (drops). Sanding also incurs a fee which will be included in the quote. All items that have been sanded or cut may not be returned.

Estimated lead time for quantities greater than what is Available Now is expected to be between 2 and 4 weeks.
If there is an Available Now quantity listed above, it indicates our quantity in stock. Orders placed today for this quantity or less are expected to ship the next business day.

Our 950mm long carbon fiber headtube is the part of a bicycle's frame where the headset and fork is mounted. This headtube is 44mm ID and is EC44 and ZS44 compatible, so it works for straight or tapered steerer forks with the appropriate headset. Larger diameter headtubes add stiffness to the front end, improving feel and responsiveness. This 44mm headtube is available in various lengths, or you can purchase it at 37.40" and cut it to any length. If you need a headtube trimmed to a specific length we recommend that you order with cutting to guarantee the flatness of the cut.

Quick Facts About This 44mm Headtube

  • EC44 and ZS44 Compatible
  • Unidirectional Matte Finish
  • 43.9mm ID x 48mm OD x 950mm Long
  • Glass layer on the inside to minimize corrosion when used with aluminum bearing components

Additional Information

P/N 45292
Application Bicycle
Frame Segment Head Tube
Finish Sanded Smooth
HTS - Harmonized Tariff Code 6815.13.0000
Inside Dimension 1.728
Length 37.402
Materials Standard Modulus Carbon
Temperature Rating (F) 250.0
OD 1.89
Outside Dimension 1.89
Tensile Modulus, msi 13.91
Thickness 0.081

Technical Data

We cannot supply any test data for this tube at this time, data may become available in the future

Tolerances

All head tubes have the following tolerance for inner and outer diameter.

ID: ±0.001" (±0.025mm), OD: ±0.003" (±0.075mm)


STOCK TOLERANCE SHEET

Download PDF

Layup Orientation

 

SKU : 45292 Rev NC
Ply # Orientation Location
1 0/90 Inside
2 0/90 ↓
3 0
4 0
5 0
6 +45
7 -45
8 90
9 90
10 -45
11 +45
12 0
13 0
14 0
15 0 Outside
 
  • 0° Fibers maximize bending stiffness. Consider bending the tube over your knee.
  • 45° Fibers maximize torsional stiffness. Typically plied together in an opposing manner, i.e. ±45°. Consider twisting the tube like a vehicle's driveshaft.
  • 90° Fibers maximize crushing stiffness and generally assist in overall tube strength. Consider laying the tube on the ground and stepping on it.
Contact Info
Tube - Head Tube - EC44 / ZS44 - 43.9 x 48 x 950 mm
P/N 45292
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