21-26 H-D with Revolution Max engine: 21-26 RH1250S Sportster S; 22-26 RH975 Nightster; 23-26 RH975S Nightster Special; 21-24 (NU) RA1250 Pan America; 21-26 RA1250S Pan America Special; 2026 RA1250ST Pan America Special ST; 2026 RA1250L Pan America Limited; 24-25 (NU) RA1250SE CVO Pan America Special;