Complete 5/8″ Jackshaft Kit for Mini Bikes & Go Karts

Upgrade your mini bike or go-kart with this complete 5/8" x 12" jackshaft kit, designed for optimal performance with 40/41/420 chain systems. This kit includes everything you need for a seamless installation: a precision-machined 5/8" x 12" jackshaft, two sturdy 5/8" mounted pillow block bearings for smooth operation, and two 5/8" bore shaft collars to secure components in place.

The package also features a high-quality 14-tooth 5/8" ID sprocket and an 8-tooth 5/8" ID sprocket with a built-in keyway, ensuring a secure fit and reliable power transfer. Included are all necessary mounting hardware and a 3/16" keyway for added versatility. Perfect for racers and DIY enthusiasts, this kit is a must-have for maximizing efficiency and durability in your ride. Note: High-resolution images and detailed measurements are provided for your convenience—verify compatibility before purchasing.