Designed with a focus on precision and durability, the GPM TRX4022 rear knuckle arms are CNC machined from 6061 T6 aluminium to provide consistent geometry and improved resistance to wear. These components stabilise the inner gears to maintain accurate mesh under load, delivering reliable gearbox performance for trail and technical driving. The high tolerance machining and robust material selection make this a performance oriented upgrade for serious hobbyists.
TRX4022