Mugen Seiki has announced some new optional parts for their MRX6X 1:8 Onroad chassis with the release of new front springs and two rear lower mounts options. The new 1.9-6.5 Front Shock Springs improve the steering characteristics of the car on tracks with low grip. The new Rear Lower Shock Mounts are offered in both 7075 Aluminium and Carbon Fibre. Both 0.5mm thicker than the kit standard 2.5mm mount, the carbon fibre version helps improve rear traction and crash resistance. The aluminium version further increases rear traction further making it suited to tracks with low grip.