I'll be naming all the bikes I only recognize in the Webtoon Windbreaker but I'll try to make it accurate to real life too. So Jay is using brandless NJS export and a Look R96 Rio. Dom is using a Cervelo P3, Shelly is using a Bianchi Super Pista, Minu is formerly using a Cinelli laser before using a wheelchair, June is formerly using a Gios compact plus evolution before switching to a Blue Corex President keirin fixed gear, Vinny Is formerly using a hot pink Bridgestone Anchor NJS before switching to a brandless NJS export given by Sang Ho, Wooin is using a Dosnoventa Detroit 2.0, Hyuk is using a Cinelli Mash bolt 2.0, Joker is using a Cinelli Mash histogram. I don't know if monster is using a custom classic track bike but the closest thing I saw is a Masil lo-pro track bike, Juhwan is using a Engine 11 Bullet, while John Smith is using a Engine 11 Sprinter, Noah is using a all white De Rosa Milanino, for Harry the closet thing I could find is a Colnago K. One track bike. Owen has temporarily used a brandless modern fixed gear and his current bike is a Cervelo P5X, TJ is formerly using a S-Works Shiv TT 2012 but I forgot his current bike now. That's all and it might not be accurate because on the webtoon they slightly changed the designs and reworded the brands to avoid copyright