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Your items may arrive sooner than the estimated delivery date. Ralph Lauren reserves the right to send packages via other shipping methods based on the shipping destination as long as orders will still arrive within the arrival times outlined on RalphLauren.com.
When you choose the Economy delivery option, packages are delivered Monday through Saturday 8 AM to 4:30 PM. Orders sent by Fast, 2-Business-Day or Next-Day shipping methods are delivered Monday through Friday from 8 AM to 4:30 PM.
We recommend choosing Fast or Next-Day delivery if you are shipping your package to a business address. You will be asked to provide a telephone number on the shipping page of checkout, which is important in the event the courier needs to arrange a delivery time with you.
You will also be asked to provide an email address, to which we will send confirmation that your order was placed.
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These Brass Wheel Hubs are upgrade replacement parts designed for the Huangbo 1/16 1601 to 1612 series full-proportional RC cars, used to add wheel-end weight, lower the center of gravity, and improve wheel mounting stability.

Note: All metal upgrade screws must be secured with thread lock. Removable thread lock is recommended.

1. What is the hex adapter size of the Brass Wheel Hubs for my HB-TOYS R1601 RC Car?
The Brass Wheel Hubs on your HB-TOYS R1601 RC Car feature a 5mm hex adapter and a 2.9mm center bore. Before installation, confirm that the wheel axle hex and adapter specifications match the original to avoid failure to secure the wheels or slipping during operation due to adapter size mismatch.
2. Will the Brass Wheel Hubs increase vehicle weight on my HB-TOYS R1601 RC Car?
They add wheel-end weight. The Brass Wheel Hubs on your HB-TOYS R1601 RC Car weigh approximately 28.5g each, totaling approximately 117g for four (including screws and packaging). This lowers the center of gravity and increases wheel downforce during crawling, but also adds suspension load and motor load. After upgrading, check suspension rebound and drivetrain condition.
3. Why should I upgrade to Brass Wheel Hubs on my HB-TOYS R1601 RC Car?
Upgrading to Brass Wheel Hubs adds wheel-end weight and lowers the center of gravity, improving crawling stability and wheel grip. The Brass Wheel Hubs on your HB-TOYS R1601 RC Car are heavier and more durable than the original hubs, suitable for players seeking increased low-speed crawling downforce and body stability, but they also add suspension and drivetrain load.

HB Toys R1601 / R1602 / R1603 are 1/16 scale 4WD off-road RC cars equipped with 280 brushed motors. They feature metal chassis beams, independent suspension, and LED lighting. Available in grey, blue, and yellow, these models are ideal for entry-level users for everyday fun and off-road terrain driving.

Note: If you have any questions about the product, or can not find the accessories you want, please contact us by e-mail, we will reply to you as soon as possible!