Can Am Spyder Passenger Grab Rail Drink Water Bottle Cup Holder - Black on Black - Easy On - Off Design Bear Claw #6214CAA Easily Mounts on Passenger Grab Rails on Can-Am Spyder or Other Models - Not designed for Handlebar Mounting! Quick No Slip Mounting - Mounts in Seconds No Tools Required Satin Black Finish - No Rust Nylon Design with Anodized Hardware Easy On - Easy Off with Hand Operated "Cam Locking Lever" Maximum Container Diameter 3 1/8" or 80mm. Will fit most standard sized cans and cups from 12 - 20 ounces and bottles from 1/2 to 1 liter. Fits most standard sized tapered tumblers. Does not fit larger "Yeti" style double walled tumblers. Rule of thumb - If container fits in a standard car cup holder it will fit in our cup holder!