ARRMA Big Rock 4s 80mph+ Speed FREAK!!! overview and spool test...
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Arrma Big Rock 4s! -NEW M2C parts and End Talion romp!
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Arrma Big Rock on 4S Redemption!!
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Arrma Big Rock-Speed Test, Review and Score!
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The Arrma Big Rock V3! It's mental!
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Worlds FASTEST Arrma Big Rock - Project 100mph+
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FAST Arrma STREET Rock! - Big Rock V3 Geared up, Hoon'd Up Speed Runs!
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Arrma Big Rock Steel spur gear upgrade And how to.
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