Severe

    Severe

    • Wet
    • XC (Cross Country)

    The Maxxis Severe (2023) is designed for XC racing in wet, muddy conditions. To prevent mud collection, the tread pattern uses small, spiky knobs spaced widely apart.

    • Rubber:
      • MaxxSpeed (2023) (best for XC race use)
    • Casing:
      • 120 TPI + EXO (best for XC race use)
    • Tubeless Ready (TR)
    • Bicycle technology explainer

    Category: XC race

    Recommended use: Wet and muddy XC race courses

    Recommended installation: Front and rear

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    Performance Ratings

    Rolling Speed

    Cornering Control

    Braking Traction

    Specs

    Part #
    Size
    ETRTO
    TPI
    Bead
    Weight (g)
    Compound
    Max PSI
    Tech
    Color
    27.5
    27.5X2.25
    TB00477500
    27.5X2.25
    57-584
    120
    FOLDABLE
    690
    MAXX SPEED
    40
    MaxxSpeed/EXO/TR
    Black
    29
    29X2.25
    TB00465700
    29X2.25
    57-622
    120X2
    FOLDABLE
    745
    MAXX SPEED
    40
    MaxxSpeed/EXO/TR
    Black
    Bec Henderson rolling through puddles Play icon
    Available Technologies

    Available Technologies

    MaxxSpeed

    The new MaxxSpeed (2023) is our top-shelf rubber compound for XC racing. It’s a high-silica content compound which reduces rolling resistance while also enhancing wet traction. Compared to the previous 3C MaxxSpeed, the new compound has approximately 25% less rolling resistance in a lab setting (using the same tread pattern, construction, and tire pressure). In a real world setting, our testing shows the new compound can save up to a minute over the course of a 90-minute race.

    Cutaway section of bike tire. Maxxspeed.

    EXO

    EXO is a cut- and abrasion-resistant material added to the sidewalls of many Maxxis mountain bike and gravel tires. This densely woven fabric is lightweight and highly flexible, ensuring that the performance of the tire remains unaffected. Choose EXO Protection for enhanced durability for gravel, XC, and light-duty trail riding.

    EXO Cutaway for web

    Tubeless Ready

    Tubeless ready tires provide the rider with many benefits: the ability to run lower air pressures, which improves traction; lower rolling resistance when compared to a tube-type tire; and less chance of flatting because there is no tube. Tubeless ready tires are denoted by the letters “TR” on the sidewall.
    Tubeless ready tires must be mounted to tubeless compatible rims and require the use of a liquid sealant to maintain pressure. Liquid sealants have the added benefit of sealing small punctures. Be sure to check your sealant regularly and refresh as needed as it will dry out over time.
    Liquid sealants should only be used in the following types of tires: tubeless road, tubular, and tubeless ready. The use of liquid sealants in any other Maxxis tire will void the warranty.
    Tubeless Ready Maxxis Shorty bicycle tire.

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