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80/100-21 Motorcycle Tires

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      Find Tires
    How do I enter my tire size?

    Look along the rim of your tire. You should be able to find a group of numbers separated by slashes and/or dashes. There are two general types of tire sizing, metric and english. Most street and dirt bikes use metric sizes. A metric size will look like 100/90-19. Most ATVs use english sizes, english size will look like 35x10-15.

    Tire Size Diagram

    KTM PowerParts
    Front Stand Pin
    $0.77 - $11.99

    Woodcraft
    Front Stand Pin
    $0.77 - $12.34

    BikeMaster
    Rubber Valve Stem
    $1.76
    5 out of 5 stars (1) review

    WPS
    Rim Strip
    $1.99
    4.5 out of 5 stars (40) reviews

    BikeMaster
    Valve Core Tool
    $2.30
    4.5 out of 5 stars (2) reviews

    BikeMaster
    Tire Valve Repair Tool
    $2.30
    3.5 out of 5 stars (3) reviews

    Show Chrome Accessories
    Air Pressure Gauge
    $2.66
    1 out of 5 stars (1) review

    Drag Specialties
    Rim Strip
    $2.95 - $6.95
    5 out of 5 stars (1) review

    Slime
    Skabs
    $3.50
    4 out of 5 stars (5) reviews
    Video Available
    Colors for BikeMaster Aluminum Valve Caps

    BikeMaster
    Aluminum Valve Caps
    $3.59
    4 out of 5 stars (5) reviews

    Slime
    Plug Pack
    $3.95
    Colors for DRC Air Valve Mud Guards

    DRC
    Air Valve Mud Guards
    $3.95
    Colors for HP Tools Air Valve Puller

    HP Tools
    Air Valve Puller
    $3.99 - $7.99
    4 out of 5 stars (45) reviews

    HP Tools
    Plastic Rim Protectors
    $3.99 - $6.77
    3.5 out of 5 stars (10) reviews

    HP Tools
    Schrader Valve Stem Core Tool
    $3.99
    4.5 out of 5 stars (9) reviews

    HP Tools
    Tire Valve Stem Core Remover
    $3.99
    5 out of 5 stars (2) reviews

    LighTech
    Wheel Valve Cap
    $4.39
    5 out of 5 stars (1) review

    TireGard
    Silicon Protective Skin
    $4.46
    Video Available

    BikeMaster
    Tubeless Valve Stem
    $4.46
    5 out of 5 stars (2) reviews

    BikeMaster
    45 Degree Angled Valve Stem
    $4.46
    5 out of 5 stars (1) review

    Bolt
    Valve Stem Grommets & Caps
    $4.49
    5 out of 5 stars (1) review

    Nuetech
    Tubliss Rim Tape
    $4.70
    5 out of 5 stars (5) reviews

    HardDrive
    Valve Stem Caps
    $4.73 - $17.96
    5 out of 5 stars (2) reviews

    HP Tools
    Tire Iron
    $4.77 - $6.77
    4 out of 5 stars (20) reviews

    Nuetech
    Nitro Mousse Lube Tube
    $4.85
    Sale
    Save 5%

    Motion Pro
    Valve Core Remover
    $4.95
    5 out of 5 stars (32) reviews

    DRC
    Aluminum Valve Caps
    $4.95
    Colors for DRC Air Valve Caps

    DRC
    Air Valve Caps
    $4.95

    DRC
    Air Valve Big Nut
    $4.95

    HP Tools
    Fanny Pack Tire Iron
    $4.99

    Motion Pro
    Tire Iron
    $4.99 - $47.99
    4.5 out of 5 stars (10) reviews

    Innovations
    CO2 Refill
    $4.99 - $6.39

    Slime
    Rubber Patch Kit
    $5.50
    5 out of 5 stars (1) review

    BikeMaster
    Tube - Straight Metal Stem
    $5.77 - $19.76
    5 out of 5 stars (8) reviews
    Video Available

    Slime
    Tire Pressure Gauge
    $5.95
    4.5 out of 5 stars (2) reviews
    Colors for DRC Air Valve Caps With Wrench

    DRC
    Air Valve Caps With Wrench
    $5.95

    Sedona
    Tube
    $7.16 - $18.86
    3.5 out of 5 stars (16) reviews

    BikeMaster
    Tire Valve Puller With Loop Handle
    $7.29
    3 out of 5 stars (8) reviews
    Video Available

    Slime
    Classic Rubber Repair Patch Kit
    $7.50

    HP Tools
    Tire Iron Spoon With Plastic Handle
    $7.77
    4 out of 5 stars (16) reviews

    Artrax
    Standard Duty Tube
    $7.99 - $12.99
    2.5 out of 5 stars (12) reviews

    Motion Pro
    Wheel Weights
    $7.99 - $64.99
    4.5 out of 5 stars (12) reviews

    HP Tools
    Brake Lock
    $7.99

    Slime
    Super Duty Tire Sealant
    $8.50 - $46.95
    3 out of 5 stars (2) reviews
    Video Available

    Slime
    Reamer Plugger Kit
    $8.50 - $12.50

    Performance Tool
    Locking Tire Chuck
    $8.89

    Motion Pro
    T6 Trail Bead Buddy
    $8.95
    5 out of 5 stars (1) review

    DRC
    Air Valve Puller
    $8.95

    BikeMaster
    2-Piece Tire Mounting Rim Protector
    $8.96
    3.5 out of 5 stars (14) reviews

    Polisport
    Basic Bike Stand Replacement Anti-Slip Top
    $8.99
    5 out of 5 stars (1) review

    Bolt
    Rim Lock & Valve Stem Seals
    $8.99

    Portland Design Works
    CO2 3-Pack
    $9.00

    Sedona
    Tapered Heavy Duty Tube
    $9.86 - $26.06
    3 out of 5 stars (5) reviews

    CruzTOOLS
    Axle Hex Adapter
    $9.95
    5 out of 5 stars (1) review

    Blackburn
    CO2 - 3-Pack
    $9.95 - $19.95

    HP Tools
    Tire Bead Helper Tool
    $9.99
    5 out of 5 stars (19) reviews

    Motion Pro
    Armor Rim Strip Tape
    $9.99
    4.5 out of 5 stars (9) reviews

    KTM PowerParts
    Brake Lock
    $9.99
    4 out of 5 stars (5) reviews

    IRC
    Heavy Duty Tube
    $10.35 - $21.56
    4.5 out of 5 stars (143) reviews

    BikeMaster
    Tube - Straight Rubber Stem
    $10.76
    5 out of 5 stars (2) reviews

    Tires for Sale

    MotoSport.com offers 0 80/100-21 Tires. A leader in our industry, we know you'll be satisfied with the Tires you buy from us.

    Our Pledge

    We want to make your next ride, your best ride. Our 80/100-21 Tires ship for free with orders over $79.

    If you need some assistance, we can help. Just give one of our Gearheads a call at 1-888-676-8853 and they can help you find the best Tires for you.

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