Searching...

On very light frames only, unsupported thin frame walls can buckle slightly under high loads, reducing strength and stiffness. Lightweight carbon fiber bulkheads at strategic locations (down tube at head tube, seat tube at top tube, above the bottom bracket shell) brace the walls, boosting stiffness while adding less weight than would be needed to thicken the walls. Net result: 2.2 grams lighter and 6% stiffer.