Specialized ATV, LLC » Products Ds18 Products Shop Products Shop Browse through our selection of Products for your every need. +3 DS18 HYDRO RY-KIT4.HD RY-KIT4.HD $119.95 In stock Quantity: 1 Add to Bag Product Details Ryder 4-GA Amplifier Installation Kit for Harley Davidson, Powersports and Marine Save this product for later Favorite