Optional 2.0mm thin high-quality CNC-machined graphite chassis for XRAY T1FK'05 as used by all team drivers in low-grip racing conditions. This chassis is 0.5mm thinner than the standard #301112 T1FK'05 chassis, allowing for an overall softer and more flexible chassis; recommended for low-grip conditions and highly recommended for asphalt tracks. The thin chassis is also great to use on low-grip carpet or when using hard compound (low grip) tires (for example, Take Off 27). Battery slots allow batteries to sit deeper into chassis for a lower CG. The chassis fits 3700mAh GP batteries without modification. Includes composite bearing holder.