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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.
What maintenance does the Portal Axle Gear 11T & 21T require?
Regular maintenance will help extend the life of the Portal Axle Gear 11T & 21T (Part No. 21040) on the YIKONG YK4106/Pro RC Car. After each off-road drive, clean away dirt, sand, and debris from the portal axle and gear teeth to prevent excessive wear.
Apply a small amount of grease to the gear teeth regularly to reduce friction and improve drivetrain efficiency. It's also a good idea to inspect the gears for excessive wear, damaged teeth, or improper gear mesh, and replace any worn parts if necessary.
Avoid frequent hard acceleration or prolonged heavy-load crawling, as these conditions place extra stress on the gears. Regular cleaning and lubrication will help keep the YIKONG YK4106/Pro RC Car drivetrain running smoothly and extend the service life of the Portal Axle Gear 11T & 21T.
About YIKONG YK4106 RC Car:
25KG high-torque metal gear steering servo with a newly designed servo buffer protection device.
Ultra-low center of gravity gearbox design.
Tank turning function: Open channel 4 to start the tank mode. The rear differential lock will open automatically to realize tank turning.
Optional parts: Optional front and rear counterweight blocks to adjust the weight.
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!