How do I register a product? July 11, 2022 20:59 Updated Congrats on your new bike! Register it here. Make sure to have your bike's serial number handy. Need help finding it? Click here. Related articles Where is the model number, date code or serial number of my bike? Where can I get an owner's manual? How can I contact Mongoose? Can I buy replacement service parts from you? How do I get a warranty replacement?