Radiator guards are mesh or louvered covers fitted over the radiator on liquid-cooled bikes to stop stones, mud and insects bending the fins. Popular on KTM Duke/Adventure, Himalayan 450, Dominar and 650 twins. Legal note: A protective accessory with no effect on RC particulars; generally legal under Section 52. Choose a guard with adequate airflow so cooling is not compromised. No RTO approval normally required. Read more