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●Pro T-REX 450 Series. ●Musí být použito s:
Slant Thread Main Drive Gear/121T(H45156/H45156QA)
●Motor pinion gear 12T(Φ3.5x12T/M0.6) ●Screw(M3x3mm) x 1●Modulus: 0.6●Weight:1.2g