it connects with snap-together UniJoiners — no nails

forming the core structure that all other components mount to

One year limited warranty through Hitec beginning at date of purchase

3x15mm BCS

making them more consistent and makes your vehicle easier and more predictable to drive

Traxxas 8880 Traxx TRX-4 (4) (complete set - front & rear) Optima Parts it connects with snap-together UniJoinersTraxxas 8880 Traxx TRX 4 (4) (complete set front & rear) Take your TRX 4 where wheels won't go with the genuine Traxxas 8880 Traxx complete set. This set of four track units front and rear replaces your tires and wheels to deliver serious traction over snow, sand, mud, and rough terrain. Engineered by Traxxas specifically for the TRX 4, the Traxx install directly for a bolt on transformation that turns your trail rig into an all terrain machine.