IRC Siren Comp

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Uses the same pattern as SIREN PRO. A new competition model of the SIREN series, which was developed with an aramid bead and emphasis on weight reduction. WEIGHT SIZE BEAD INFLATIO N IRC# -258g 20"x1.50" Aramid 75–100 -295g 20"x1.75" Aramid 75–100 -310g 20"x1.90" Aramid 75–100 -343g 24"x1.75" Aramid 45–65 -178g 20"x1 1/8" Aramid 90 -259g 20"x1 3/8" Aramid 50–75 Show more