RcThjia Upgraded Oiled Shocks Set (66mm/72mm) Aluminium Oil Shock Absorber for 1/12–1/16 RC Cars

What you’re getting and why it matters

This RcThjia oiled shock absorber set is aimed at RC drivers who want their car to feel less “arm-wrestle” and more controlled over bumps. On paper, the big shift here is moving away from the more basic friction-style damping and into real oil-based shock behaviour, with a threaded aluminium body that lets you adjust preload quickly.

If you’re upgrading a 1/12, 1/14 or 1/16 scale RC car and you’re specifically after more suspension travel (they’re long-travel threaded shocks in the description), this set could be a sensible way to get there without changing your whole suspension philosophy.

That said, it’s not perfect for every build. You still need to make sure the shock length matches your car’s suspension layout, and oil shocks can feel a bit more “alive” than simple dampers—great when tuned right, frustrating if you don’t have the spacers/adjustment approach sorted.

The key build ideas (oil damping and adjustability)

The standout concept is that these are described as real oil shocks internally, using shock oil rather than relying on friction damping. The description also mentions bladder-style seals intended to support consistent rebound damping, and that a unique sealing design helps prevent oil leaks.

The aluminium bodies are CNC-machined and hard-anodised in the stated design, with threaded shock bodies for quick preload changes. In practical terms, threaded bodies make it easier to experiment: you can tighten/loosen to suit the way your car lands after jumps, or how it behaves when you’re pushing into corners.

Is this an “instant performance miracle”? Not really. It’s a mechanical upgrade that’s only as good as your setup and the fitment to your specific RC car.

What to know about compatibility before you buy

Compatibility is one of the few things you absolutely must verify yourself. The listing explicitly calls out several models/vehicle fits, including WLtoys and some SCY/HBX options, plus MJX shock-compatible parts.

Still, fitment isn’t just about model names. The description specifically includes a clear warning: check whether the shock size is suitable for your car before ordering. Because this set comes in 66mm/72mm lengths, the “right” choice depends on what your car’s suspension can physically accept.

It’s a good move if you want a direct upgrade for one of the named compatible setups. But you may want to skip it if you’re unsure about your current shock length, mounting positions, or travel requirements.

Where these shocks tend to shine in use

For off-road bashing, rough tracks, or any setup where the suspension needs to work deeper into its travel, long-travel oil shocks are the kind of upgrade that usually shows up quickly in how the car settles after impact.

A simple example: say your RC car bounces after landing from a small hop. If the damping and rebound are better controlled, you typically see less of that repeated “pogo” effect and more stability during the next steering input.

Because the bodies are threaded, you can also fine-tune preload for different driving styles—more firm for smoother tracks, more forgiving if you’re running over uneven terrain.

What’s less convincing (realistic limitations)

The description is positive on simulation performance and sealing, but it doesn’t provide independent performance testing or measurable results. So, while the concept is strong, you’re still relying on the build quality and your tuning.

Also, if your current suspension geometry doesn’t suit long-travel shocks, you could end up with clearance issues or handling changes you didn’t ask for. And if you’re expecting “drop-in and done” without checking lengths, mounts and preload range, it might disappoint.

Tech specs

• Name: RcThjia Oiled Shocks Upgraded 66mm/72mm Aluminium Oil Shock Absorber Set
• Type: Oil shock absorber set (oiled, bladder-style sealing mentioned)
• Size: 66mm/72mm (as listed)
• Material: Aluminium shock bodies (hard-anodised mentioned)

Is it worth it?

It’s worth buying if you’re running a compatible 1/12–1/16 RC car (based on the models listed), you want longer-travel suspension feel, and you’re willing to check shock length fitment and tune preload.

You may want to skip it if you’re not confident about whether 66mm/72mm matches your current suspension setup, or if you prefer simpler friction-style dampers where tuning is more forgiving.

For the kind of buyer who enjoys tweaking suspension response—especially for bumpy driving—this set looks like a practical upgrade path. For someone chasing “plug-and-play” without measuring, it may not be a great match.

Mini FAQ

Will these fit my RC car?

The listing names several compatible models, but it explicitly says to check shock size suitability before buying—so confirm length and mounting fit for your specific setup.

Are these oil shocks or friction dampers?

The description states they use shock oil internally rather than typical friction damping.

Can I adjust preload easily?

Yes, the shocks are described as having threaded shock bodies for quick preload adjustment.

Do they need regular maintenance?

No maintenance schedule is provided in the details you shared, so it’s best to follow sensible RC suspension care habits and keep an eye on performance changes over time.

What should I double-check at checkout?

Double-check the listed model compatibility and, most importantly, whether the 66mm/72mm shock size is appropriate for your car’s suspension layout.