Ergon GP4 GFK Bar End (2015+) (Left) - 42481565
Ergon GP4 GFK Bar End (2015+) (Left) - 42481565, Replacement Barends for GP4 Grips. Features: Note because of additional leverage of GP4 and GP5 bar ends, Ergon does not recommend using on carbon fiber handlebars Glass fiber composite For 2015 and newer grips