⚙️ Smooth Power • Precise Control • Rock-Solid Strength
Upgrade your TRX4M drivetrain with INJORA Alloy Steel Helical Gears engineered for precision, smoothness, and strength. Whether you’re seeking faster front-axle pull for climbing or lower gearing for control, these CNC-machined gears deliver the torque balance and durability serious crawlers demand.
⚡ Features:
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🔩 CNC-machined 20CrMo Alloy Steel for extreme durability and wear resistance
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⚙️ Helical gear design provides quieter, smoother operation than stock straight-cut gears
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🚙 Overdrive / Underdrive tuning allows tailored front-rear speed bias for traction and control
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🧱 Direct fit for TRX4M front or rear axles—no modification required
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🧠 Improved strength, less vibration, and reduced drivetrain noise
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🧰 Ideal for climbs, descents, and technical rock work
📊 Gear Ratio Options:
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22T / 10T Underdrive: ≈ -9% speed (added control)
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24T / 10T Underdrive: ≈ -16.7% speed (extra torque)
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24T / 12T Standard: No speed change (stock ratio)
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22T / 12T Overdrive: ≈ +9% speed (better front pull and climbing balance)
📏 Specifications:
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Material: 20CrMo Alloy Steel
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Weight: ≈ 7 g per set
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Finish: Precision machined and hardened
📦 Includes:
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(1) Ring Gear
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(1) Pinion Gear
(Each axle requires one set — not interchangeable between ratios.)
🔧 Compatibility:
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1/18 Traxxas TRX4M (Defender, Bronco, K10, F-150 and High Trail versions)
💡 Pro Tip:
Pair Overdrive front and Underdrive rear gears for superior climb balance and reduced rollovers on steep terrain.
