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Motor Pinion 11T Instructions:Use for T-Rex 450 Series. Must use with:Slant Thread Main Drive Gear/121T (H45156)Specifications: Motor pinion gear 11T(3.5x11T/M0.6) x 1 Screw(M3x3mm) x 1 Modulus: 0.6 Weight:1.2g Align T-Rex 450 Motor Pinion Helical Gear 11T H45160
Motor pinion gear 11T(3.5x11T/M0.6) x 1 Screw(M3x3mm) x 1 Modulus: 0.6 Weight:1.2g