TRX4MZSP1216 is a GPM machined aluminium beadlock rim kit sized for 1-inch internal tyre diameters, engineered for TRX4M-based and other 1/14 to 1/24 scale crawler applications. The CNC-machined halves provide consistent clamp surfaces and improved mechanical fastening over molded plastic wheels.
Fit and parts detail: the kit is supplied as loose wheel halves and fastening hardware requiring assembly. The centre clamping ring includes vents to assist tyre seating and allow precise trimming. Relevant family pairing part numbers are provided, including TRX4MZSP19A/B through TRX4MZSP24A/B for tyre and adapter selection.
Assembly, balance and tuning: correct screw torque and even bead clamping are essential to maintain bead retention and rotational balance. The included metal weighting feeders permit calibrated mass additions at the rim, enabling controlled adjustments to rolling inertia and traction characteristics for technical crawling scenarios.
For builders prioritising durability and precise wheel behaviour on scale trails, these aluminium beadlocks offer a robust upgrade; verify tyre inner diameter and follow measured assembly and weight tuning procedures.