Original Name / Part No: 7756 Part location: Outer side of wheel Product major functions & usage: Lock and stabilize the wheel tightly Packaging Includes: Wheel adapters-4pcs Screw Shaft 3x5-12pcs Suitable Model: TRAXXAS 1/6 4WD XRT 8S-78086-4 TRAXXAS-1/5 X-MAXX 8S MONSTER TRUCK-77086-4 TRAXXAS 1/6 XRT Ultimate 8S-78097-4 TRAXXAS 1/6 XRT Ultimate 8S-78097-4 Major advantages of upgrading to this part/product: (1) Made with a quality light weight high tensile strength 7075 alloy for greater support and durability. Special capped design to prevent sand and dust during the drive. (2) The wheel lock is lengthened, which can be easily disassembled. The internal knurling design can bite the wheel tightly and play a role in preventing looseness,Included with high strength bolts to be more sturdy. (3) Flanged wheel hex sized to fit the HPI Baja and similar 1/5 wheels onto the Traxxas X-Maxx truck, Integrated 17mm hex, threaded through and serrated for superior strength and holding power, and an extended boss to fit and locate the inside of standard 1/5 wheels to the 17mm X-Maxx axle. Design also works perfectly on stock wheels, adding style and holding power.