The Samix SCX10 III/Capra Heavy Duty Brass Knuckle Combo combines SAMSCX3-4412C3 and SAMSCX3-4412 to create the ultimate heavy-weight package. The precision machined brass knuckles are compatible with the stock parts, and weigh 112 grams total. SAMSCX3-4412C3 is full weight tuning package that adds scale details to improve the look and performance of your rig. The complete SAMSCX3-4412C3 package weighs 196 grams total, and when combined with the knuckles adds a whopping 308 grams of weight! The parts are finished with a stealthy black coating and gold chamferred edges that gives the rig a custom look, that will allow you to adjust the weight bias of the rig to suit your needs. Features: Gain 315g of weight SAMIX scale brake rotor & caliper for realistic looking crawler (the brake rotor suitable for STD SCX10-3 wheel) Better center or gravity and forward weight bias for climbing (with adjustable weight system) Made of high quality brass and etched with L and R for ease of installation Direct fit front knuckle Black coating to help prevent corrosion Direct fit standard SCX10-3 / Capra