Yokomo R12-21SS Soft Rear Side Roll Spring - Setup Edition  [R12-21SS]

Track-Focused Rear Roll Tuning with Yokomo R12-21SS

When refining chassis balance, the Yokomo R12-21SS soft rear side roll spring provides a softer rear response that can help the car rotate more predictably. It's suited to YRX12, GT and YR-10F chassis where subtle spring changes make a big difference in lap times.

How It Affects Handling and Compatibility

This spring lowers rear roll rate, which often enhances rear traction during cornering. Because it fits many Yokomo models, it is a flexible option for drivers who test multiple setups across different cars.