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5 minute upgrade - turn the LEGO Technic 42099 4X4 X-treme Off-Roader into a capable crawler! - YouTube
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MOC] Rocky 42099 B model - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
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LEGO MOC 4x4 RC Off Road Truck - LEGO Technic 42099 B Model by grohl | Rebrickable - Build with LEGO
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MOC] Rocky 42099 B model - LEGO Technic, Mindstorms, Model Team and Scale Modeling - Eurobricks Forums
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