Bontrager Line Pro Factory Overstock Stem | Trek Bikes
  1. Loading...


Bontrager Line Pro Factory Overstock Stem

$60.00 $99.99 Model 31115

An oversized 35mm stem that is lightweight and durable for the burliest mountain riders.

Search store availability

Oversized and in control

Equip your whip with this 35mm Line Pro stem and give yourself the oversized advantage. Forged from 6061-T6 3D aluminum, this finely finished stem provides the increased strength of the latest mountain-specific bar diameter at the lightest weight possible.

Product details

  1. Pro-level quality stem in oversized 35mm clamp diameter for increased strength and minimal weight
  2. Forged from 6061-T6 3D aluminum
  3. Laser-etched calibration marks make dialing in the perfect angle simple and repeatable
  4. Compatible with both Knock Block and standard headsets and spacers
  5. Knock Block system protects frame from impacts by fork and handlebars by eliminating over-rotation of bars
  6. High-strength corrosion-resistant steel bolts ensure the freshest look for longer
  7. Available in a wide range of sizes for today's mountain rider
  8. Go green and save green - Zero packaging means zero waste and zero extra cost

More options



Size 0 deg. x 60mm 0 deg. x 70mm
Rise 0 deg. 0 deg.
Length 60mm 70mm
Steerer outer diameter 28.6mm (1-1/8") 28.6mm (1-1/8")
Clamp 35mm 35mm
Type Threadless Threadless
Material Aluminum Aluminum
Weight 164g 168g
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Weights are based off Trek pre-production products at time of publication. Weights may vary in final production.

Product Compare Rack

Start comparison