The BS-CR01/V1 full ball bearing set is supplied to provide running bearings for the TAMIYA CR01 drivetrain and hub interfaces. Replacing plain bushings with correctly sized bearings reduces frictional losses and yields more consistent rotational behaviour under slow, high-torque crawling loads.
This supply is intended as a service and tuning component rather than a structural chassis modification. Proper bearing selection and installation reduce rolling resistance, improve thermal behavior in low-speed duty cycles, and help maintain predictable torque transfer through axles and shafts.
Fitting recommendations: verify bore concentricity and remove any corrosion or old grease before fitting. Use a calibrated bearing press or driver to avoid misalignment, check endplay and radial runout after installation, and apply a thin, compatible lubricant to control running feel without adding drag. Revalidate gear mesh and wheel hex axial preload to maintain CR01 specification limits.
For technical hobbyists and racers tuning a CR01 for consistent low-speed torque delivery, the BS-CR01/V1 offers a precision replacement option when installed and maintained correctly.