- The guys here at Muc-Off HQ have been racking their brains to come up with a solution for carbon fibre bike parts slipping. Whether it's your Carbon seatpost having a mind of its own or your Carbon stem is struggling to grip your handle bars, our mad scientists have come up with the answer. May we introduce the all-new, highly advanced Carbon Gripper! Put simply, the Muc-Off team have created a highly efficient carbon fibre assembly compound that is essential for preventing over-tightening and creating a secure ‘mating friction’ between carbon surfaces or indeed carbon to metal parts.