Upgrade your TRX-4M’s suspension with the INJORA 59mm Long Threaded Oil Shocks, designed to deliver smoother damping, increased articulation, and improved stability on rough terrain. Built from CNC-machined aluminum with threaded preload adjustment, these shocks offer true performance tuning for any 1/18 crawler.
This listing is for a set of 2 shocks—perfect for upgrading either the front or rear of your TRX-4M.
⭐ Features
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Perfect fit for all 1/18 Traxxas TRX-4M crawlers
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Available Colors: Red, Black, Gray
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CNC-machined aluminum bodies for durability and style
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Threaded adjustment collars for quick preload tuning
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Telescopic design for maximum suspension travel
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Includes two spring rates per shock:
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Soft (0.45mm wire – black spring)
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Stiff (0.5mm wire – silver spring)
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Nylon bottom rod ends for durability
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Recommended shock oil: 20–40wt
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Shock oil not included
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Adjusting preload ring increases rebound capability
📏 Specifications
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Part Number: 4M-42
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Full Length: 66mm (2.60")
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Extended Length: 59mm (2.32")
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Compressed Length: 42mm (1.65")
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Travel: 17mm (0.67")
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Spring Length: 45mm (1.77")
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Weight: 6g (0.21oz) each
📦 Includes
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(2) INJORA 59mm Aluminum Oil Shocks (Color selected at purchase)
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(2) Soft Springs
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(2) Stiff Springs
