The Factory Pro O-TCPF08 roll spring mount is a Graphite 2.0 tuning part made for the Tamiya TRF104 1/10 touring car chassis. It serves as the dedicated mounting point for roll springs and is used to alter roll response and adjust roll centre behaviour during setup.
Fitment is a direct swap for the stock TRF104 mount and only needs standard hobby tools plus the original screws. Check suspension alignment and confirm springs seat correctly when installing, because small positional changes can noticeably affect handling.
Take a measured tuning approach: change one mount or parameter at a time, record lap-to-lap differences, and use complementary spring and damper changes to reach the handling you want. This part is for model use only and is not intended for real vehicles.
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