Lowering Link fits all 1999-2004 Suzuki Hayabusa 1300 models. Most other makers of Lowering Links for Suzuki and Kawasaki motorcycles use 6061 T-6 aluminum and have proven to crack or break. For that reason, Yana Shiki USA manufactures their Suzuki and Kawasaki lowering links from 7075 T-6 Billet aluminum. This type of aluminum is the strongest available on the market today, providing the greatest amount of safety and protection for the rider.