SCX10-3 / Capra brass knuckle

Feature:1) Brass knuckle add 56g per side. Better center or gravity and forward weight bias for climbing2) Better durability and rigidity over the factory parts3) Made of high quality brass and etched with L and R for ease of installation4) Direct fit factory SCX10-3 / Capra parts and the rest of samix brass upgrades5) Black coating to help prevent corrosion6) Stainless steel knuckle busing & screw include x4