PKT's New UPDATED Lightweight High Quality Sprocket carriers. Available in 25mm, 30mm, 1.25", 40mm and 50mm sizes. We have a 3 spoke 25mm carrier for Kid Kart applications and a 3 or 6 spoke 30mm and 1-1/4" carrier for Kid Karts and Cadets. Machined now only with 8mm keyways. We have also added a 6mm locking set screw to keep the carriers from moving on the keys and to ensure a secure fit against the axle. Finished in black anodize with laser engraving. All sprocket hardware included. Sold individually.