Check the listing for details. Big Dog Motorcycles Engine S&S Compression Release Boots PAIR ALL MODELS 2003-11. Condition: New. Listed at 16.99 USD. NEW S&S CYCLE pair of compression release silicone boots used on all Big Dog Motorcycles models from 2003-11. Including 2005-2007 models with TP heads.These are the silicone/rubber boots that protect the compression releases from dirt/water intrusion.S&S CYCLE #50-1080Check out my other items! Be sure to add me to your favorites list! We have been selling Big Dog Motorcycle parts on ebay since 2003. We started as the original Big Dog factory liquidation outlet, then progressed to the exclusive contract buyer for all surplus parts from the factory including new overstock. When the company was foreclosed on in 2013, we purchased the remaining inventory and all of the original tooling from the bank. Since then, we have continued to manufacture new Big Dog Motorcycle parts with most of the original vendors using factory O.E.M. specs and materials. We have also upgraded some old parts and developed new parts in the manufacturing process. Call Donna for questions6202572009