Order Number (we will confirm date of purchase and determine if the item is still under the manufacturer’s warranty time limit) We will request for an assembly receipt as proof of professional installation.įor all warranty claims, please contact our Warranty Team at So that we can help you in a timely manner, make sure to include the following: If the bike is NOT built by a certified bike shop mechanic, any warranty will be VOID. All bikes purchased through City Grounds MUST be assembled by a certified bike shop mechanic.