Rotor products are guaranteed for 2 YEARS against any manufacturer defects or defective materials. In the event of a warranty defect, Rotor's sole obligation under this warranty is to repair or replace, at its option, the defective part or product at no charge. Moreover, in some countries, Rotor is obligued to ensure any legal warranty defined by law for the customer´s protection. Elements subject to wear and breakdowns that the manufacturer is not responsible for, are not covered by this warranty. Failures or breakdowns caused by improper use, poor assembly or inadequate maintenance as declared in the instructions or the user manual are not covered by this warranty. Always keep your receipt or invoice, this warranty does not cover products whose serial number or identification has been erased, damaged or modified. The following acts void this warranty: Failure to fulfill the requirements above, improper installation, improper use or installation of inadequate parts.

Rotor has had almost no warranty issues with their products since the RS3 was introduced in 2001. However, if repairs should arise, Rotor has a U.S. repair facility along with the headquarters facility in Spain and offers FedEx express repair service. We are dedicated to keeping our racers and riders on their bikes and will do whatever is needed (including full replacement Rotor units sent via FEDEX) to keep your Rotorized bike up and running.

We know that you race on your Rotorized bike and count on your Rotors to function perfectly. Be assured that we will always be available to answer your questions about installation and work through any maintenance issues you may have. Your performance and happiness is our #1 priority.

Your owner's manual contains important and useful information regarding the proper installation, operation, care, and maintenance of your ROTOR RS4X Crankset. Carefully read, follow and understand the instructions given in this manual. You should keep it in a safe place for future reference. Do not perform any modifications or adjustments that are not outlined in this manual. If you have any doubt whatsoever regarding your service or repair ability, please take your bicycle to a qualified repair shop. Incorrect installation or service may reduce performance, and could result in a dangerous situation leading to injury or death. Please have your bicycle regularly inspected by a qualified mechanic for any cracks, deformation, signs of fatigue or wear. Components that have experienced excessive wear, cracks, deformations or impacts need immediate replacement. Failure to perform maintenance could drastically reduce your ROTOR crankset life and performance. If you ever have any questions, please contact us.