Coming soon from Tamiya are three option parts for their all-new SW-01 mini stunt chassis. First up is an upper arm connector bar set made from fibre glass. The items will connect the front and rear axles for all-wheel steering capabilities. Using the parts will enable the ability to steer the rear wheels even during wheelies while also countering traction rolling. Also new is an 8-piece set of suspension springs. Included are colour-coded soft and hard springs that help to adapt the suspension hardness to various track conditions. Last but not least comes a full ball bearing set containing a total of 20 ball races that improve drivetrain precision and efficiency. All of the above sets will hit stores in August.