This 12pcs aluminium internal shock set is designed for the TRAXXAS TRX4 Trail Crawler chassis and aimed at scale crawling rigs that need low-friction travel and predictable damping. The units arrive assembled and oil-filled so they can be fitted directly to TRX4 frames using a 93mm midpoint damper spacing.
Key features include an anodized aluminium cylinder with a polished finish, stainless steel shock shafts, Delrin spring collars, and alloy ball bearings. The internal springs are formed with an oval profile to reduce contact with the cylinder wall and extend service life when running on rough rock lines.
In tuning terms these shocks are focused on lowering internal friction and absorbing sharp impacts from obstacles, which helps stabilise the chassis during slow technical crawls. They come pre-built so you can set oil viscosity and preload without an initial teardown.
For TRX4 owners wanting a ready-to-fit, oil-charged internal shock option that improves smoothness and impact control, this set is a practical upgrade for scale crawling balance and tuning.
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