The Venture 3D Lumbar Pack spare tire racks Maximum Contact Drop (MCD) is

Maximum Contact Drop (MCD) is technology that packs comfort into the drops of these bars for increased wrist clearance while sprinting

Ventilation: excellent ventilation through 10 air inlets and 9 air outlets

and 30 mm heights

and it has a gentle backward sweep for a more natural hand position when riding the tops

The Venture 3D Lumbar Pack spare tire racks Maximum Contact Drop (MCD) isThe Venture 3D is a high performance pack featuring a custom 3D printed lattice backpanel that cushions, breathes, and grips better than traditional materials. It builds on the original Venture design with fully reengineered patterning, materials, and pocket layout to enhance comfort and functionality. Made with ultra durable Challenge Ultra 400X fabric, it offers lightweight strength and weather resistance. The flap style opening, updated padded