Stainless steel bead screws installed at no extra charge.
High quality valve stems. Exceeds all CIK (worldwide design standards).
New magnesium alloy with higher impact strength.
Designed for easier tire mounting.
FIA / CIK required lock nuts and instructions included with each individual wheel or two wheel set.
NOTE: MB5-138V & MB5-140V exceed CIK maximum width specifications.
Our strengths in technology, innovation & development have broken many records.  in a class of their own, M-Series karting wheels have redefined magnesium wheel technology. We’ve applied our Portion-form technology to our high pressure magnesium cast process to create incredibly strong, light-weight wheels that enable you to manage heat, tire wear, grip and handling. These premium magnesium race wheels offer every advantage you’d expect and more, and better still – they’re affordable.