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Tires and Tubes / Tubes / Road Tubes
FOSS TPE Presta Tube
FOSS TPE Presta Tube
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FOSS TPE Presta Tube
FOSS TPE Presta Tube

FOSS
TPE Presta Tube

Mfg PartNum:
  (2 customer reviews)
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Explosion-Proof Elasticity Meets 30% Weight Savings & Lower Rolling Resistance

FOSS TPE Polymer Presta Valve inner tubes are made of a high-polymerized rubber mixture, but without being vulcanized. If punctured, the tube material forms an air-tight seal around the thorn, nail or puncture-intent sliver of glass, mitigating the speed of the leaking air, so that you hardly notice any air loss.

This increases the durability of the tire in case of a defect as no explosive air loss occurs. Thus the tube is considerably more puncture resistant than a normal butyl tube. Due to the low density, the FOSS tube is 30% lighter at the same size compared to a conventional tube. The tubes are also completely recyclable.

Please note: A FOSS patch kit is needed to patch a FOSS tube. These patch kits are unfortunately no longer available. These tubes will thus not be repairable if punctured.

Features:

  • Explosion-proof polymerized material forms an airtight seal around punctures
  • High elasticity reduces rolling resistance
  • 30% lighter than traditional tubes
  • Completely recyclable, environmentally friendly material
  • More puncture-resistant than traditional butyl tubes
  • Smooth 40mm Presta valves
  • Removable valve cores
  • Sizing: 700x23-25, 650bx48-63mm
  • Weights: 700x23-25 - 94g, 650bx48-63mm - 166g

  • *Note: Foss TPE tubes require specific installation. When mounted, the tube junction seams must be in front or forward of the valve position, in the direction of cycling travel. Be careful not to bunch, twist, or stretch the tube as this may cause deformation and jamming of the tube inside the tire.

    Once tube and tire are mounted onto the rim, press the valve in to insure the tube is seated against rim tape, then pull it out to its full length. Inflate to 0.5 psi and massage the tire around the full circumference to ensure tube is fully expanded and seated flush against the rim and tire. For more detailed instruction, see the link above.

    B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

     

    Tube Type: Thermoplastic 

     

    Tube Valve Length: 40 mm

     

    Tube Valve Type: Smooth Presta (Rem. Core) 

    700 x 23-25mm

    Wheel Size: 700C/29" (ISO 622) 

    Tube Valve Length: 40 mm

    700 x 23-25mm

    Tube Width: 23-25mm 

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    Good tech
    rating
    by Anonymous

    They do seal up small cuts

    Reviewed 7/14/2022
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    Thank you for your feedback.
    I found them to have very good cushioning, holds air a long time.
    rating
    by bikerguy
    Cycling Enthusiast
    midwest

    Used in Cannondale Topstone for touring. Good ride feel very comfortable with them and their resistance to puncture.

    Reviewed 6/9/2022
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    Thank you for your feedback.

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