How to Assemble the 20" Hyper Bicycles Spinner BMX Bike

Learn how to assemble your Hyper Spinner bike quickly and correctly with this step-by-step guide from Hyper Bicycles. Whether you're a first-time rider or gifting this bike to someone, this video will walk you through the entire assembly process — from unboxing to final safety checks.

Tools You'll Need:

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  • Wire Cutter
  • 15MM Open End Wrench
  • 5MM Allen Key
  • 4MM Allen Key
  • 4MM Allen Torque Wrench
  • (Set to 5 NM)
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Remove the Bike from the Box

Start by carefully removing your 20" Hyper Shocker bike from the box. Prepare the seat post and saddle for installation. Having all components ready will set the foundation for an efficient and smooth assembly.

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Install the Seat Post

Insert the seat post into the seat tube of the bike frame. Make sure it is inserted fully, ensuring the minimum insertion line is no longer visible. This ensures the seat is secure and properly installed.

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Attach the Front Wheel

Open the axle nuts and release any safety tabs before attaching the front wheel. Insert the wheel into the fork, making sure it is aligned properly. Tighten the axle nuts securely to ensure the wheel is stable and performs well during rides. After tightening, double-check the wheel's alignment within the fork arch for proper placement.

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Secure the Steer Tube and Handlebar

Next, ensure that the steer tube is snugly fitted, and the handlebars are properly aligned with the front fork. Tighten the necessary bolts to secure the steer tube and ensure the handlebars are stable. This step is crucial for bike stability and control during rides.

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Install the Pedals

Remove the pedals from the parts box. Keep in mind the threading:

  • The right pedal has standard threading and should be screwed in clockwise.
  • The left pedal has reverse threading and should be screwed in counter clockwise.

Ensure both pedals are tightly installed to prevent any issues while riding.

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Adjust the Brakes

Proper brake adjustment is key for safety. Make sure the brake pads are aligned with the rim, ensuring effective stopping power. Adjust the brake arms so they have equal tension for balanced braking performance on both sides.

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Adjust the Rear Derailleur

Ensure the rear derailleur is correctly set up and functions smoothly. Adjust the derailleur limits if necessary, ensuring the bike shifts gears efficiently and prevents the chain from slipping or jamming.

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Install Reflectors for Safety

Install the front and rear reflectors securely using the appropriate tools. Properly aligned reflectors increase your visibility, helping keep you safe, especially when riding in low-light conditions.

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Check Tire Inflation

Before heading out for your ride, check the tire inflation. Refer to the recommended pressure levels indicated on the tire sidewall. Proper tire inflation ensures smoother handling, better ride quality, and reduces the risk of flats.

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Final Safety Check

Before riding, do a final safety check of your bike:

  • Reflectors: Ensure all reflectors are securely attached and properly oriented.

  • Tires and Wheels: Check the tires for proper inflation and inspect the wheels for any loose components.
  • Handlebars and Pedals: Test the stability of the handlebars and ensure the pedals are securely installed.
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Ready for Your Ride

Once all components are securely installed and adjusted, your 20" Hyper Shocker Bike is ready for the road. Conduct a quick test ride to ensure everything feels stable and secure before you begin your journey.