INJORA 51mm Shocks-Long Travel Threaded Double Barrel Damper
✅ PROS
- Threaded bodies allow precise ride-height tuning without swapping springs or disassembling the shock
- Double barrel damper design adds oil volume for more consistent damping over rough terrain
- 51mm stroke is a genuine upgrade over stock AX24 shocks — noticeably more articulation at the axles
❌ CONS
- Stock springs are on the soft side; heavier AX24 builds may need the included preload spacers or aftermarket springs
- Hardware is small and easy to lose — have a magnetic tray handy during install
The Verdict
INJORA 51mm Shocks Review: Worth the Upgrade for Your AX24?
If you own an Axial AX24, you already know the stock shocks are the weak link. They’re short, bouncy, and prone to leaking. The INJORA 51mm Long Travel Threaded Double Barrel Dampers are designed to fix exactly that — and for the most part, they deliver.
What’s in the Box
You get four complete shock assemblies (two front, two rear — though they’re essentially identical), four sets of spring preload spacers, and the hardware needed to mount them. The shocks come pre-filled with oil, which is convenient, but check the fill level before install — a few buyers reported units arriving slightly underfilled.
The build is what you’d expect from INJORA at this price point: CNC-machined aluminum bodies with a threaded collar for ride-height adjustment. The “double barrel” design is the headline feature here — it’s a twin-tube layout that increases oil capacity and helps dissipate heat during hard runs. Whether that matters for a 1/24-scale crawler is debatable, but it does make the damping feel more consistent than single-tube alternatives.
Real-World Performance
The 51mm stroke is the big selling point, and it’s immediately obvious on the trail. Stock AX24 shocks give you maybe 30mm of usable travel; these nearly double that. Articulation improves dramatically, which translates to tires staying planted on off-camber sections and over obstacles that would have high-centered the stock setup.
The threaded bodies let you fine-tune ride height in seconds — loosen the collar, spin it, lock it down. That’s a genuine quality-of-life upgrade over shock spacers or spring swaps. For tuning, you can adjust preload via the included spacers or swap springs entirely, since the shock bodies accept standard 1/24-scale springs.
One thing to note: the oil viscosity out of the box is on the thinner side. For crawling, that’s fine — it lets the suspension droop and articulate. If you’re running a faster, heavier build, you’ll want thicker oil (30wt or 40wt) to control the rebound.
What Buyers Are Saying
The 4.4-star average across 220 ratings tracks with my experience. Recurring praise centers on the build quality and the travel improvement. One reviewer put it simply: “These completely transformed my AX24. The stock shocks were garbage; these are butter smooth and the articulation is insane now.”
Another common theme is fitment: “Bolt-on for the AX24, no mods needed. Took about 20 minutes to swap all four.” That’s accurate — the hardware lines up with the stock mounting points.
Where It Falls Short
The springs are the weakest part. They’re soft — good for maximum droop, but a heavier build (metal bumpers, bigger wheels, extra accessories) will sag. The included preload spacers help, but if you’re running a fully-loaded rig, budget for aftermarket springs.
The hardware is also tiny — M2 screws that are easy to drop and lose on a workbench. Not a dealbreaker, but have a parts tray and some patience during install.
Finally, the price-to-value ratio is solid, but not unbeatable. You’re paying a premium over basic oil-filled shocks for the threaded adjustability and the double-barrel design. If you never tune your suspension, the cheaper options might serve you just as well.
Who Should Buy These
- AX24 owners who actually crawl: If you’re pushing your rig over rocks and roots, the extra travel is transformative.
- Tinkerers: The threaded adjustment and spring options make this a good platform for experimenting with setups.
- Upgrade path builders: If you’re already upgrading axles and links, these shocks are the natural next step.
Skip them if you’re a casual basher who just runs around the backyard. You won’t notice the difference enough to justify the cost.
FAQ
Q: Are these a direct bolt-on for the stock AX24? A: Yes. No drilling or modification needed. The mounting hardware matches the stock shock mounts.
Q: Do these come with oil pre-filled? A: Yes, they arrive assembled and filled. Check the oil level before your first run — some units ship slightly underfilled.
Q: Can I use these on other 1/24-scale rigs? A: Possibly, but the mounting points are specific to the AX24. Other rigs like the SCX24 may need adapters or custom mounts.
The Verdict
Rating: 4.2/5
Buy it if: You own an AX24, want dramatically better articulation, and appreciate being able to dial in ride height without tearing the suspension apart.
Skip it if: You’re on a tight budget, rarely adjust your setup, or just want a drop-in replacement that does exactly what the stock shocks do — only slightly better.
The INJORA 51mm shocks are a legit upgrade that addresses the AX24’s biggest handling flaw. The soft springs and fiddly hardware keep them from a perfect score, but for the price, this is one of the most effective suspension mods you can make to your rig.