Evotech Performance Crash Bobbins For Triumph Bobber (2017+) Evotech Performance Crash Bobbins For Triumph Bobber (2017+) The Evotech Performance Frame Sliders install onto factory mounting points so you don’t have to worry about making any modifications to your stock motorcycle. CNC machined aluminum hardware holds high performance polymer that is meant to take the brunt of damage whether it is a parking lot tip over or low side. Features: Installs onto original mounting points your motorcycle High-performance engineering polymer CNC-machined for a precise fit and finish Aircraft quality aluminium Durable powder-coated finish No modifications required