This powerful starter motor is an upgrade for engines with big bore cylinder kits. You can use this if you are having a hard time starting with a racing cylinder block kit installed. You will need a bigger size battery and a strong power cable connection, as this starter motor will use more amps to power.
Honda RS150R/Winner/Supra/GTR150/Sonic (2016)
Honda CB150R/CBR150R (K45G) (2016)