Renthal – Renthal Sprocket Hardware & Kits, including the Ducati Carrier 6-Spoke and Ducati Carrier 5-Spoke sprocket carriers and the CRF230F 428 Conversion Kit. This is the supporting hardware that makes a gearing change actually work rather than a compromise. On single-sided Ducati chassis the sprocket bolts to a carrier rather than directly to the hub, and the correct 5-spoke or 6-spoke carrier is what allows a lightweight Renthal rear sprocket to sit flat, run true and clamp evenly instead of loading individual studs. Carriers machined to the right tolerances protect the cush drive, keep chain alignment accurate and stop the vibration and uneven wear that a mismatched part causes. The 428 conversion kit takes a different approach for the Honda CRF230F, moving the bike off its heavy factory chain size to a narrower, lighter drivetrain with a much wider choice of tooth counts. Less rotating weight and better ratio options transform how a trail bike accelerates and how easily it holds a gear in technical terrain, without any engine modification at all. Getting the mounting hardware right keeps a light sprocket running true instead of causing vibration.