Switch Mount. Comes with Metric and American standard bolts, Easily Detachable Cup is 3 inches wide by 4 inches tall, 2 insulated liners to accommodate many sizes of drink bottles. Mount On: Clutch or Brake Perch Mounting, bolts vertical spacing centre to centre at 1 1/16" to 1 1/2" apart to accept included Metric and American standard bolts. Fitment: Harley: All Harley models, recommended for models with 6 gallon tanks for optimum tank clearance. Honda: All GL 1500/1800 Models, all VTX 1300/1800 Models, Shadow 750 Aero, Ace & Spirit, Shadow 1100 Kawasaki: All Vulcan 900 Models, Vulcan 1500/1600 including Mean Streak Yamaha: All Road Star & Warrior Models, All VStar Models, All Venture Models