JSUMO JS4320 Aluminum – Silicone Wheel Pair (43mm x 20mm) Pair (6mm Hole)

The SUMO JS4320 Aluminum - Silicone Wheel Pair is engineered to deliver maximum traction and lightweight performance for competitive robotics applications. Designed specifically for non-magnetic sumo robots , these wheels combine a precision-machined aluminum hub with a high-grip silicone tire to provide excellent pushing power and control. The soft 20 Shore A silicone tire maximizes surface contact, helping robots maintain traction during aggressive pushing matches. The lightweight aluminum construction reduces rotational mass, allowing faster acceleration and improved maneuverability without sacrificing durability. Each wheel features a 6 mm center bore and an M4 setscrew mounting system , ensuring a secure connection to motor shafts commonly used in sumo and combat robotics. The wheel's compact dimensions make it suitable for robots ranging from lightweight combat classes to sumo robots weighing between 1 lb and 3 lb . Supplied as a pair, the set includes mounting hardware and an Allen wrench for quick installation and maintenance. Specifications Parameter Value Model JS4320 Wheel Type Aluminum Rim with Silicone Tire Diameter 43 mm Width 20 mm Center Hole Diameter 6 mm Tire Hardness 20 Shore A Setscrew Type M4 Tapped Setscrew Wheel Weight 26 g (each wheel) Dimensions 4.3 × 4.3 × 2 cm Height 4.3 cm Recommended Robot Class 1 lb – 3 lb Robots Material Aluminum and Silicone Package Contents 2 Wheels, 2 M4 Setscrews, 1 Allen Wrench Applications Non-magnetic sumo robots Mini sumo competition robots Lightweight combat robots Autonomous robotic platforms Research and educational robotics projects High-traction robotic drive systems Custom mobile robot designs Prototype robotic vehicles Robotics competitions and demonstrations Small electric drive platforms