ARC have released this new option chassis for their R10 touring car. The optional flex type chassis is made from 2.5mm carbon fibre and they added 2 layers of glass fiber in the middle to give more flex. Their testing showed that with 2 layers of glass fiber the chassis was more flexible and made the handling more predictable. The new chassis also provide a extra hole for a battery holder and shorty LiPos can be used. The new 1.6mm thick upper deck also gives more flex as well as more steering and stability especially on low grip track conditions.