When quality and precision are top priority, I9 is the brand. The A318 stem is machined, anodized and assembled entirely in Asheville, NC. Industry Nine controls every stem of the process - from raw material to machining to anodizing to assembly. The 'A' in the A318 name comes from the A-axis of the five-axis machining used to manufacture the stem body and faceplate.
Length: Available in 30mm, 40mm, 50mm
Weight: (30mm) 127g, (40mm) 136g, (50mm) 155g
Material: Stem: 7075 aluminum, Bolts: 316 stainless steel
Clamp Diameter: 31.8mm
Steer Tube Diameter: 1 1/8in