The Avian Versus Tapered Carbon Pro Race Fork is reliable, efficient and lightweight the perfect combination for a top end race fork. With a steerer tube made from 4mm thick 7005 aluminium that features an internal locking system to eliminate expander plugs and star nuts that often compromise fork strength. The aero carbon fibre legs are made of highly durable toray fibre when paired with the 20mm alloy drop outs make the Versus one of the stiffest on the market. ###section### Product Specs Steerer Length: 170mm Steerer Diameter:  Wheel Size: 20" Material: Carbon Dropout Size: 10/20mm Options Offset: 32mm Weight: 1.36lbs (618g) Size: 20mm