Muller Motorcycle AG Shock Spring Compression Tool Conversion Washer For Harley Softail The Shock Spring Compression Tool Conversion Washer enables easy clamping of Pre-2018 shocks into the Muller Motorcycle AG Shock Spring Compressor Tool, ensuring a seamless fit and ease of installing lowering kits. Features: For use on 1989-2017 Softail shocks with the Muller Shock Spring Compressor Tool Safe clamping of the shock Fast mounting of the lowering kit Made in Germany