- Material and finish: CNC machined from 6061-T6 aluminum alloy with III class hard anodized surface for durability, corrosion resistance, and long service life in bicycle applications. - Rod extension: extension length 8 in (203 mm) with a diameter of 0.87 in (22 mm) to provide additional reach while maintaining a compact profile. - Handlebar clamp compatibility: clamp base supports mounting on handlebars with diameters of 0.875 in (22 mm), 1 in (25.4 mm), 1.125 in (28.6 mm), and 1.26 in (32 mm). - Rubber ring attachments: supplied with four soft rubber ring pads to protect the assembly surface and improve comfort. Ring pad diameters correspond to 22 mm, 25.4 mm, and 28.6 mm. You can add or remove rings to match handlebar size. If the rubber rings are not embedded, the clamp base accommodates handlebars up to 1.26 in (32 mm). - Vibration damping and security: the assembly clamp base uses rubber padding and a lock bolt to prevent loosening under high vibration, improving stability during rides. Use scenarios: - Road cycling with standard 22 mm handlebars: use the 22 mm rubber ring to secure an accessory extension without damaging the bar. - Mountain or gravel biking with larger bars (25.4 mm to 32 mm): select the appropriate rubber ring(s) to ensure a snug, protected fit and reduce movement. - E-bike or rough-terrain use requiring vibration resistance: the rubber padding and lock bolt help maintain a stable mounting of accessories such as lights, computer mounts, or small bags, even on rough terrain.