Converting the front of the B4.1 to a clamping 12mm hex adaptor is simple with the latest release from JConcepts. The hex adaptors are precision machined, blue anodized aluminum and feature a clamping style design that combine durability and functionality. Installation is simple, and tire changes are hassle free.

Adaptors require JConcepts Inverse wheels or Mono wheels for proper mounting, offset and handling characteristics.