2" taller than the Standard Windshield.
Tall=16.5" vs. Standard=14.5"
Direct replacements for the originals, tall BMW windshields are constructed from scratch-resistant 6mm GE FMR Lexan polycarbonate sheet stock. Considered the best material for this purpose, it is optically clear when viewed at 90 degrees.
Dimensional weight listed
BMW Motorcycles R1150RT|R1100RT Touring Windshield
BMW Original Parts