CNC Machined Brass Front Lower Arm Bulkhead (Black) TRX-4M Brass Comes included with our heat-treated

Comes included with our heat-treated steel lock-nut style hinge-pin kit

Nylon lock nuts secure the hinge pin and helps prevent the pin from ever coming loose or backing out

These hex adapters are +1mm off-set to give your RX-4M a slightly wider stance for stability and extra weight with the hex help improve control of wheel speed

Providing more durability

CNC Machined Brass Front Lower Arm Bulkhead (Black) TRX-4M Brass Comes included with our heat-treatedON SALE! Note: Not for IFS2 Add more weight to the front of your Trailrunner or Knightrunner and improve its performance on the trails with this CNC Machined Brass Lower Arm Bulkhead. Please note this is for Original IFS configuration and will not work with IFS2