Qu-Ax Profi 20 Black Steel Frame

Measure: 20 inches

Material: steel

Tire up to:2.3"

Outside diameter: 28.6 mm (seat release size)

Internal diameter: 25.4 mm (seat tube size)

Distance between bearings: 10cm (center to bearing center)

Extras: 

Weight:980 g (including screws and ties)