PI-MON4-80-R Ø: 79.975, Kit: S3 280cc MONTESA See models 4RT 280 to 4RT 300 2016 to 2020 COTA 4RT 300 2016 to 2020
PI-MON4-815-RNEW Ø: 81.475, Kit: S3 300cc MONTESA See models COTA 4RT 310 2019 to current 301 RR 300 2021 to current