Thru Axle adapter for the inner structure of the Aerocomfort 3.0 bike bag. Made from durable DuraShield™ thermoplastic material with a 12mm diameter, it attaches to the rear T-Bar in seconds. Designed specifically for the Aerocomfort Road and Triathlon 3.0 models. Depending on the width of the bike’s rear frame, three installation options are available: using two adapters (approximately 150mm), one adapter (approximately 138mm), or mounting the bike frame directly on the T-Bar without adapters (approximately 130mm). These configurations ensure a good fit for various bicycle models.