Handlebar shim alloy 2.0 Adapter shim for stem

The SQlab Adapter Sleeve was developed to securely fit 31.8 mm handlebars into 35.0 mm 2.0 stems. Made from high-quality aluminum with a silver finish, it offers a precise fit while remaining lightweight and durable. The sleeve enables the use of proven handlebars with smaller clamp diameters in modern oversize stems – supporting a customized and ergonomically optimized cockpit setup. Note: Using the adapter sleeve reduces the ASTM category rating of the combined handlebar setup. The resulting combination complies with ASTM F2043-13 / DIN EN 17406, Category 2 – suitable for road use and light MTB terrain. Key Features: Allows connection of 31.8 mm handlebars to 35.0 mm 2.0 stems Made from high-quality aluminum Compatible with proven SQlab handlebars precision fit for secure installation Meets ASTM Category 5 (ASTM F2043-13 / DIN EN 17406) as the sleeve itself complies with ASTM 5.