MenuMenuModern Bike

Thomson X4 80mm 90d 31.8 Black

Email this product to yourselfEmail this product to yourself

your price $114.95 + ships free

BuyBuy PART NUM 755644
Thomson X4 80mm 90d 31.8 Black
Thomson X4 Mountain Stems feature smooth edges for carbon bar compatibility and use bolts that are custom heat treated with corrosion preventative plating.

Item Specifications
  • Weight: 169g
  • Intended Use: Mountain
  • Thomson
    Thomson X4 80mm 90d 31.8 Black
    Thomson X4 80mm 90d 31.8 Black

    your price $114.95 + ships free


    Usually ships in 2-3 business days.

    Also consider:

    Customer reviews of this product:

    StarStarStarStarStar Stem

    by Shane M. of Davison, MI
    Ownership: several months
    Tech Knowledge: average

    Great stem for the money, does what Its supposed to do I have no complaints

    StarStarStarStarStar Thomson Steeze bring you to your knees

    by DokThunda
    Ownership: one year
    Tech Knowledge: average


    Gorgeous Thomson lines and quality made this my go to for my sb66c.


    There are lighter options.

    Write a review

    Would you like to write reviews of the products you've bought from Modern Bike? You can help other Modern Bike customers make informed buying decisions! Write Product Reviews

    Share this product:


    Thomson is leading with innovative design for two primary markets - aerospace and cycling.

    See all Thomson

    We define color as the main color of the item. It may have accents or highlights in other colors.

    These models are available for online purchasing and can be shipped directly to you.

    Bar clamp diameter is the diamater of the handlebar.

    Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.

    S.H.I.S clamp diameter is the steerer tube diameter.

    Stem angles are measured perpendicular to the clamp. For example, a 90 degree stem is straight. Sometimes, this may also be refered to as a 0 degree stem. If two measurements are listed, the stem can be flipped for angling up or down.

    Stem Type

    This is the part number or identifier for this item from the manufacturer

    In stock orders usually ship in 1-2 business days.

    This gives you an estimate of when an item should be available to ship once ordered.

    Sorry. This product is sold out and not currently available.

    You are browsing an Industry Catalog. We've simply republished information exactly as we got it from our supplier without curating or improving it. The product names, descriptions, and photographs within this expanded catalog have not been reviewed and may contain industry short-hand and technical jargon. Please carefully study each product before you place your order. learn more

    Buy this product and your entire order ships for free.

    Some orders are inelligible for delivery discounts. See offer details for disqualifying products and destinations.

    Thomson X4 80mm 90d 31.8 Black

    your price $114.95 + ships free

    BuyBuy PART NUM 755644