Kenda Kraze 20" × 4-1/4 E-Bike Tire

    LOW STOCK - Free Shipping
    Sale price $120.00 -31% Regular price $172.99
    Regular price $120.00
    Supermoto Tread – motorcycle-style semi-slick
    Quiet on Pavement – fast-rolling center strip
    E-Bike Rated – 30 TPI casing, wire bead
    Puncture Resistant – thick rubber compound
    Fits 20" Fat Rims – Cougar, Super73, Rad & more
    Option:
    6 left in stock - Nearly sold out!
    Kenda Kraze 20" × 4-1/4 E-Bike Tire
    Sale price $120.00 Regular price $172.99
    Regular price $120.00
    • Free Shipping + Real-Time Tracking

    • 14-Day Return Policy

    • Call Our USA Support Team – (203) 405-0202

    Kenda · Kraze

    Supermoto Street Rubber for Your Fat Tire E-Bike

    The Kenda Kraze 20" × 4-1/4 is the tire riders swap to when they want their e-bike to ride — and sound — like a street machine. A motorcycle-style semi-slick tread, a casing built for e-bike weight and speed, from one of the most trusted names in two-wheel rubber since 1962.

    Super73 style e-bike fitted with Kenda Kraze 20x4.25 supermoto street tires

    The Supermoto Look

    Make It Look Fast Standing Still

    The Kraze's smooth, motorcycle-inspired profile is the go-to street conversion for moped-style e-bikes — Super73 builds, Rad runners, and fat tire café racers alike. Ditch the knobs, drop the bike on street rubber, and the whole machine changes character.

    The raised KENDA sidewall lettering finishes the moto look right out of the box.

    Kenda Kraze semi-slick tread close-up showing smooth center strip and water-evacuating grooves

    Semi-Slick Tread

    Ride Quiet. Grip Everything.

    A slick center strip rolls fast and silent on pavement — no knobby hum, less rolling resistance, more from every battery charge. Deep water-evacuating grooves sweep across the shoulders, so the Kraze keeps its footing through corners and on wet roads.

    It's a motorcycle tread pattern, scaled for your e-bike.

    Kenda Kraze 20x4.25 e-bike tire mounted on a rear hub motor wheel, drive side view

    Built E-Bike Tough

    Made for Motors, Not Just Pedals

    E-bikes are heavier and faster than pedal bikes, and the Kraze is built for it: a 30 TPI casing with a durable wire bead and a thick, puncture-resistant rubber compound that shrugs off the debris that flats lesser tires.

    It's the same tire trusted as original equipment on major e-bike brands — proof it can take a hub motor's torque day after day.

    What You're Rolling On

    • 20" × 4-1/4 supermoto profileWide fat-tire footprint with a street-smooth crown
    • Semi-slick, quiet treadSlick center strip, grooved shoulders for wet grip
    • Puncture-resistant constructionThick compound built to resist flats
    • 30 TPI casing, wire beadDurable carcass made for e-bike weight and speed
    • Wide rim rangeFits rims from 67 mm to 102 mm; max 30 PSI on wide rims
    • Two ways to orderTire only, or tire with a matching inner tube — mount and ride

    Comprehensive Fitment Guide

    Sold as one (1) tire, 3.3 lbs — order two to do both wheels. Check the size on your current tire's sidewall before ordering.

    Revi Bikes (sold here)

    • Revi Cougar & Cougar Pro — front and rear (stock 20" fat rims; the 4-1/4 width mounts on the same rim as the factory 20×4.0)
    • Revi Prowler — rear wheel (the front runs 24"×4.0)

    Other 20" fat tire e-bikes

    • Fits bikes that ship on 20×4.0 to 20×5.0 rubber: Super73, Rad Power (RadMini, RadRunner), Ariel Rider, Juiced, Lectric, Macfox and many more
    • A popular street swap for any 20" fat e-bike on a 67–102 mm rim
    🏆

    Our Guarantee

    Every tire ships fast from the USA and is covered by our 14-day easy return period. Questions about fitment? Call us at (203) 405-0202 before you order — we ride these bikes too.

    3-Year VIP Warranty

    Every genuine Revi part is backed by our 3-year VIP warranty. Buy it once, ride it for years.

    Ships from the USA

    Parts stock sits in our USA warehouse — no overseas wait when your bike is down.

    14-Day Returns

    Ordered the wrong part? Tell us within 14 days of delivery and we start the refund immediately.

    Real Help, Fast

    Not sure it fits? Call (203) 405-0202 or email help@backtomodern.com before you order.