Mountain Stems

Handlebar Clamp Diameters

35mm | 31.8mm

A35 Lengths

32mm | 40mm | 50mm | 60mm

A318 Lengths

30mm | 40mm | 50mm

Industry Nine’s A-Series stems are crafted from aluminum billet into a svelte design of equal form and function. Using practices honed in our machine shop over a decade of CNC manufacturing, we offer the rider another unyielding Industry Nine component.

Taking name and shape from the A-axis in our five-axis machining centers, the A35 and A318 are designed for all-mountain applications. The A35 and A318 utilize either a 35mm or 31.8mm handlebar clamp diameter.

Every A-Series stem is machined, anodized and assembled entirely in our Asheville, NC facility and available in a variety of lengths geared for modern trail bike geometry. Add our expressive mix of 11 anodized colors, and you’ve arrived at the intersection of execution and style

Configure A35 Configure A318
  • Includes Six High Strength 316 Stainless Steel Custom M5 Bolts
  • 180 Degree Wrap
  • 100% Domestically Sourced Solid 7075 Machined Aluminum
  • Eleven Anodized Color Choices + Color Combinations
ModelLengthWeightRiseDegreeStack
A318 30mm127g+/- 4.4mm40mm
40mm136g+/- 4.4mm40mm
50mm155g+/- 4.4mm40mm
A35 32mm128g+/- 5mm42mm
40mm135g+/- 6mm40mm
50mm150g+/- 6mm40mm
60mm165g+/- 640mm