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Challenge Gravel Grinder

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    • Gravel Grinder 36 B/B
    • Use: All Around Gravel
    • Size: 28"
    • Tire Width: 36 mm
    • Internal Rim Width: 17-23 mm
    • Weight: 355 gr
    • TPI: 260
    • Bead: Aramid
    • Casing: SuperPoly
    • Flat protection: Double PPS
    • BAR: 3-9
    • PSI: 45-130
    • Color: Black-Tan


    • Gravel Grinder RACE 38
    • Gravel Grinder PLUS 38
    • Gravel Grinder RACE 33
    • Gravel Grinder PLUS 33
    • Use: All Around Gravel
    • Size: 700
    • Tire Width: 33mm, 38 mm
    • Internal Rim Width: 17-23 mm
    • Weight: 395 gr
    • TPI: 60
    • Bead: Aramid
    • Casing: Nylon
    • Flat protection: PPS
    • BAR: 3-5.5
    • PSI: 45-80
    • Color: Black-Black
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