The Yokomo ZR-041SA soft mold inner is a lightweight, flat-profile foam insert made to improve traction on 1/10 touring cars. Developed with Team Yokomo testing, this yellow insert performs well on high-traction surfaces like carpet and asphalt by creating a larger contact patch for smoother acceleration and steadier turning. That helps reduce incidents of stalls and high sides when steering inputs are heavy.
Whether you are running indoor carpet or a high-traction asphalt layout the ZR-041SA provides reliable steering feel and consistent grip levels. Its balanced response supports confident cornering when pace is pushed.
In stock classes it is useful to reduce powertrain load. The ZR-041SA helps by lowering rolling resistance, which can translate into improved average speed and crisper acceleration out of corners.
The insert is compatible with a range of Yokomo touring chassis models: MRTC-BD8, MRTC-BD8A, MRTC-BD818, MRTC-BD818A, MRTC-YD2CK, MRTC-YD2, MRTC-86, MRTC-SD9, MRTC-BD919, MRTC-BD919S, MRTC-BD10, and MRTC-BD10A.
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