Progressive Suspension Fork Lowering Kit Features: Give your cruiser bike a custom lowered look by lowering the front forks Kits include all hardware and instructions needed to lower forks by 1 or 2 To maintain proper geometry, we recommend lowering the rear of the bike by the same amount as the front Progressive Suspension 412 series shock absorbers are an ideal choice for rear lowering Please note that all lowering kits reduce ground clearance. Care should be taken to avoid bottoming, especially over bumps or in turns.