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The XStem Project is a build-in-public effort to create a modern stem for vintage Cannondale HeadShok bikes and modern setups alike. Subscriber feedback directly influences what gets designed, tested, and produced next, with small-batch parts supporting continued development.
May 2026 XStem Project Update Where Things Landed The pre-order window for the first XStem production run closes this weekend. The 25-unit minimum wasn't reached. No deposits were collected, so there's nothing to refund and no commitments to unwind. I want to be direct about what this means and what it doesn't. What it means: The retail price of $499, driven by the economics of small-batch domestic CNC at 25 units, is above what this market will support. That's a clear signal and I'm not...
A Modern Stem for Headshok. Finally. Pre-Orders Are Open 25 units. $499. Made in the USA. ISO 4210 validated. 1.56" Steerer | 31.8mm Handlebar | 60mm Length | 0deg Rise | 2-piece Clamp 6061-T6 aluminum. Machined in Nevada. Stainless 316 hardware. How it works: $100 refundable deposit reserves your spot. Balance of $399 due before shipping. I'll reach out personally to confirm your anodize preference (black or clear) and shipping details. Pre-order window closes May 25, 2026. If 25 deposits...
March 2026 XStem Project Update ISO Results Are In The XStem has completed ISO 4210 mountain bike stem validation. Testing included: • Full MTB fatigue cycles (in-phase and out-of-phase)• 1600N and 2600N forward bending stages• 1000N lateral bending• 50Nm torsional security All tests were completed successfully. This wasn’t a parking-lot test ride. These were measured load cases under controlled conditions. Structurally, the XStem meets modern ISO mountain bike stem validation requirements....