The Quill rim comes in at 415 grams, the Quill is 35 grams lighter than the A23 while also being 17.2% wider internally, 12.6% laterally stiffer, and 78.5% radially stiffer.* Featuring an outer width of 24.5mm and an internal width of 21.1mm, the Quill’s voluminous width provides riders with substantial lateral stiffness even in lower spoke counts and increased ride quality and control. With its matching 24.5mm depth, the aero profile provides significant performance and durability gains over previous rim brake models.