Yes, the R7M is fully compatible with the factory windshield on the BMW R1300RT.
You can mount the device on the BMW navigation preparation bracket without any clearance issues. Even when the original windshield is set to its lowest position, it will not touch the screen.
The R7M features an elongated design with dimensions of 185.7 × 102 × 36 mm. Because the screen is wider rather than tall, it ensures a perfect fit and a seamless installation on the R1300RT.