INJORA 180 Pro Fit & Reliability Problems — Review

Data basis: We analyzed dozens of buyer reports and hands-on demonstrations collected Jan–Feb 2026, mostly from written reviews and supported by video demonstrations. Most feedback came from written posts, with video evidence backing key failure modes and common patterns.

Top failures

Will this fit my TRX4M without modifications?

Fit uncertainty: Many buyers report needing modifications during installation, a primary issue seen repeatedly.

When it shows up: This appears during setup, often when swapping the stock motor or trying to mate connectors.

Why worse than normal: Unlike most mid-range upgrades, this unit often requires extra wiring or adaptor parts, adding time and extra cost.

Does the gearbox hold up under regular driving?

• Primary complaint: Gear wear and gear stripping is a commonly reported failure after repeated use.
• Usage anchor: It typically appears after several runs or sustained rock-crawling sessions.
• Early sign: Buyers note increasing grinding noise then progressive loss of smooth power delivery.
• Impact: Repair or replacement adds more time and expense than expected for this price tier.
• Fixability: Some users managed repairs, but it often requires opening the gearbox and extra tools.

Is the motor noisy or rough out of the box?

• Persistent issue: Rough operation and vibration are a secondary pattern seen across multiple feedback types.
• When it happens: Noticeable on first runs and can worsen after wear begins.
• Cause signal: Noise correlates with users reporting poor gear mesh or slight shaft misalignment.
• Category contrast: Noise level is higher than typical mid-range upgrades, which often run noticeably quieter.
• User attempts: People tried shimming, re-meshing gears, and re-torquing mounts with mixed success.
• Hidden cost: Fixes often need specialty tools or replacement gears not included in the package.

Will installing this be quick and simple?

• Assembly claim: Product is sold as pre-assembled, but many found a hidden requirement for wiring adapters.
• When noticed: This appears during electrical hookup when stock connectors don't match.
• Frequency tier: This is a secondary but widespread issue among recent buyers.
• Impact: Buyers spent extra time sourcing connectors or splicing wires, which may void warranties.
• Attempts to fix: Some succeeded by reusing stock plugs or buying adapters; others returned the unit.
• Why worse than normal: Mid-range alternatives typically include adaptors or clearer wiring instructions.
• Hidden requirement: Expect to need basic soldering or connector crimping skills for a clean install.

How easy is it to get parts or support if something fails?

• Support gap: Buyers frequently note limited replacement parts availability as an edge-case issue.
• When it matters: This shows up after a failure, when quick replacement is needed to get the vehicle back on the trail.
• Persistence: Less frequent than fit or wear issues but more frustrating when it occurs.
• Impact: Delays and added costs are common when aftermarket gears or motor parts aren't readily offered.
• Mitigation attempts: Users source generic parts, but fit and specs can differ and require extra modification.
• Category contrast: Many competitors have better spare-part ecosystems at similar price points.
• Buyer takeaway: If you rely on quick fixes, this higher-than-normal support gap matters.

Illustrative excerpts (not real quotes)

"Motor fit required cutting a bracket and splicing wires to match stock." — reflects a primary pattern of installation surprises.

"After a week of crawling it started grinding under load, so I stopped using it." — reflects a primary durability failure after repeated use.

"Very loud from the first run; shimming helped but didn't solve it fully." — reflects a secondary pattern of rough operation.

"I had to order replacement gears from elsewhere; seller didn't stock spares." — reflects an edge-case support problem.

Who should avoid this

• Buyers wanting plug-and-play: Avoid if you expect no modifications during install.
• Frequent rock-crawlers: Avoid if you need high durability under sustained load.
• Non-hobbyists: Avoid if you lack basic soldering or crimping skills for wiring fixes.

Who this is actually good for

• Budget tinkerers: Good if you accept extra work to save on upfront cost and can modify mounts and wiring.
• Short-run hobby projects: Useful if you only need temporary performance and can tolerate earlier wear.
• Parts donors: Suitable if you plan to salvage gears or motor for experimentation or custom builds.

Expectation vs reality

• Expectation: Reasonable for this category is a straightforward swap into 1/18 TRX4M models.
• Reality: Many users faced unexpected adaptors and wiring, adding time and complexity.
• Expectation: Reasonable is durable gears for light crawl use.
• Reality: Reports of accelerated wear turned that expectation into added maintenance.

Safer alternatives

• Choose adaptors included: Prefer sellers who include connectors or adaptors to neutralize the fit uncertainty.
• Look for spare parts: Pick options with a documented spare-gear supply to reduce the support gap risk.
• Prefer tested gear ratios: Choose gearboxes with community-tested durability reports to avoid premature wear.
• Buy from sellers with clear wiring guides: This avoids the hidden requirement for soldering and crimping.

The bottom line

Main regret: The biggest trigger is compatibility surprises that force extra modification and expense.

Why it matters: Those surprises combined with above-normal wear make this riskier than typical mid-range upgrades.

Verdict: Avoid this unit if you need a plug-and-play, durable upgrade; consider it only if you expect to tinker and accept extra setup time.