The plastic swingarm guard prevents the swingarm from being damaged. Advantage: A swingarm that is intact and visually attractive is sure to have a positive effect on the resale value of your motorcycle. Note: Brake line guide (P/N 76504042000; sold separately) is required for correct mounting onto TC 125, FC 250/350/450 for models made in the year 2016 and after. Husqvarna PowerParts P/N: 7720499410030.