1 x "Rhino Gear" Ultra Hardened Steel Pinions - 0.5M 11T - T-REX 450
1 x "Rhino Gear" Ultra Hardened Steel Pinions - 0.5M 12T - T-REX 450
1 x "Rhino Gear" Ultra Hardened Steel Pinions - 0.5M 13T - T-REX 450