These are 37mm(1 1/2") thick and have been machined from S52 Grade hot drawn seamless steel tubing by a specialist company that machine precision parts for Eaton Axles and JCB among others , they have been designed to be stronger than anything currently available in order to withstand extreme offroading as I have had them made in order to use a set on a Fourtrak challenge truck I am building for next year with 33" or 35" tyres. Of the 5 sets I have had made 1 is mine, 2 are pre-sold but 2 are still available at £170 + Vat per set of four.
