BST - Diamond TEK (Wheel Set) Scott Sports The shell is made of

The shell is made of tri-composite material (fiber

Tool compartment with key loop

cornering grip and greater traction on soft terrain

over a wide range from town use to long touring and winding roads

The R4K features a revolutionary Koroyd™ core with superior impact absorption and a reinforced nylon upper shell

BST - Diamond TEK (Wheel Set) Scott Sports The shell is made ofUsing high tech processes pioneered in the aerospace industry, BST wheels are manufactured in a single molding operation. This technique produces a wheel that is far superior in strength and much lighter than any aluminum or magnesium wheel, and one that is light and strong enough for racing and street use. BST wheels are a unique monococque (single unit) design with hollow spokes. The end result is wheels with unsprung weight reduced 40 60 percent