The crownRK in Ergalfor KZ is the outcome of the transmission research for competition karting. Subjected to phenomenal couples during crossovers, it was developed with a special manufacture to offer arecord lightness (only 285g)without ever sacrificing the strength of the teeth.

Optimize the transmission of your kart with the 8mm steel Trou Clavette Crown. This essential part is designed to deliver reliable and sustainable performance, ensuring efficient power transmission from your engine to the wheels. Made of high-quality steel, this crown is ideal for demanding karting enthusiasts in terms of performance and reliability. It is specially designed for use with 428 karting chains and is available in three sizes: 30, 40 and 50 teeth.