XRAY have introduced the new adjustable battery holders for the T4. The adjustable holder and the battery backstops are CNC-machined from lightweight aluminum or brass while the battery holders are machined from premium lightweight graphite material. The brass version adds extra 7.5g weight for additional weight balance adjustment of the battery side of the car. The design allows to move the batteries in all directions, front and back and also left and right for an easy and comfortable weight transfer adjustment. The front/rear weight balance can be adjusted in 4mm range. The battery holders allow to mount the battery tape over the top of the battery only without the instalment of the tape under the chassis which allows increased flex of the chassis and as such helps to generate more traction. Thanks to the chassis-free installment of the tape the ride height of the car can be slightly decreased as there is no more tape under the chassis.