Yokomo BD9 Rear Toe Control System - B9-RTCA  [B9-RTCA]

The Yokomo B9-RTCA is a rear toe control unit designed for BD9-series RC touring car chassis. It provides an adjustable toe progression that changes as the rear suspension moves, allowing tuners to dial in a predictable rear response without altering primary suspension geometry.

Use this assembly as an extra tuning point when you want controlled toe change through compression and rebound. It is intended to complement conventional alignment adjustments rather than replace them, helping refine mid-corner stability and rear traction on supported chassis.

Installation notes: the part mounts at the rear suspension area of the compatible models and usually requires disassembly of some rear components. Basic hand tools such as hex drivers and small wrenches are commonly needed. Consult the chassis service manual or retailer fitment notes for step-by-step guidance and any model-specific details.