If you are refreshing a kid's BMX freestyle bike with an old school frame, the rear brake cable setup can be the puzzle that stalls the whole build. A gyro lets the bars spin without tangling the cable, but the rotating unit and cables have to match the frame's head tube size exactly. The BMX BIKE 1" Gyro + Upper & Lower Cables set arrives at USD 24.99 as a complete package aimed at that situation, with a clear fit limitation to weigh before you commit.
Quick verdict
This black 12-ounce kit from Term includes the gyro unit, the upper and lower plates, and the upper and lower cables, with steel, plastic, and aluminum construction. It is a single-package way to add a gyro to a compatible old school frame. For a young rider on a flatland or freestyle bike, that can mean cleaner cable behavior through bar rotations, but only if the frame matches the intended standard.
Who it suits
This parts kit belongs on an old school BMX flatland or freestyle project, including old school dirt jumpers and hardtails. The set is compatible with brands such as Odyssey, which helps when you are mixing aftermarket components, and it is designed for the 1-inch head tube found on many older freestyle frames. If your kid's bike uses a newer 1-1/8 inch head tube, this is not the right fit.
What stands out from the listed details
The strongest point is completeness. Instead of hunting down a gyro, plates, and cables separately, you get the main rotating and cable pieces together in one package. The 12-ounce weight keeps it light enough for a kid-oriented build, and the new condition means you are not starting with worn hardware. Steel, plastic, and aluminum parts give the kit a familiar construction for this kind of component.
Meaningful trade-offs
The main trade-off is fit. The set is built for old school frames with a 1-inch head tube, and it will not work with new school or mid school 1-1/8 inch head tubes. Since the 1-1/8 standard is common on many modern BMX bikes, this is a specialty upgrade rather than a general-purpose cable set.
Bottom line
For a frame with the older head tube standard, the BMX BIKE 1" Gyro + Upper & Lower Cables Oyrg Fit Oldschool FREESTYLE BMX Bike New at USD 24.99 is a practical way to add gyro functionality without sourcing each piece individually. Measure your head tube first, and this kit becomes a straightforward step toward a spin-ready kids' BMX setup.
BMX BIKE 1" Gyro + Upper & Lower Cables Oyrg Fit Oldschool FREESTYLE BMX Bike New

The reason to choose this kit is the convenience of getting the gyro, upper and lower plates, and the cables together for an old school freestyle build. The limitation to keep in mind is the narrow fit window: confirm your frame's head tube standard before ordering, because the cables and gyro are aimed at the older style, not newer frames.