Adjustable 7075 Aluminum Alloy CNC Stem Lock

High Strength, Lightweight: Crafted from aerospace-grade 7075 aluminum alloy with CNC precision, this stem lock delivers outstanding durability without adding unnecessary weight.

Enhanced Bearing Protection: Traditional headsets often fail at the upper cup before the bearings wear out. Our reinforced upper headset cover features an embedded design that strengthens the cup structure while improving waterproofing and dust resistance—significantly extending bearing lifespan. In comparison, stock setups rely only on a fragile plastic seal.

High-Carbon Steel Bearings: Built with premium high-carbon steel, the bearings offer superior hardness, wear resistance, and load-bearing capacity. This ensures smoother steering response and a longer service life, even under aggressive riding conditions.

Stronger & More Durable Build: A solid metal threaded rod reduces spacing between the upper and lower cups, boosting overall rigidity and durability while keeping head bearings consistently tight.

Versatile Fit: Adjustable from 100mm to 250mm.