For the processing it is absolutely necessary, that you send us your defective 125cc cylinder (ref. ..500R/600R) without attachments send after purchase and payment. If your cylinder is in stock, you will receive the goods within 1-3 working days. If your cylinder is not in stock, it will be sent after approx. 10-14 AT delivered. You are welcome to inquire with us in advance about stock availability. Through our practical and racing experience, we have the know-how, a comprehensive service for your engine at a fair price to be able to offer value for money. Our top priority is always the satisfaction of our customers. We guarantee this through competent, friendly advice and a wide range of products as well as fast delivery of goods. International bidders are welcome, please read carefull